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Dr. Video Games 0031
Jul 17, 2004

Dr. Video Games 0031 posted:

MSI has some cheap Radeon cards right now. The RX 6600 for $325 the RX 6600 XT for $390, and the 6700 XT for $510, all after mail-in rebates.

Well, after two weeks and a few days, there's no more 6600 selling for that cheap, but the 6600 XT is now down to $370 after rebate and the 6700 XT is [url=https://www.newegg.com/msi-radeon-rx-6700-xt-rx-6700-xt-mech-2x-12g/p/N82E16814137641[/url] after rebate. These are fairly good prices when compared to their Nvidia counterparts, and the 6600 XT is actually $10 below MSRP.

Sapphire also has an $800 6800 XT after a promo code (+$10 shipping), though I think I'd rather have a 3080 for $830.

Oh, and speaking of GPUs selling for below MSRP, here's a 6900 XT for $900 after rebate. That's $100 below MSRP!

AMD prices are continuing to fall much faster than Nvidia prices. I think the comparisons at the high-end are not so favorable for AMD, but considering how impossible it is to get a 3060 Ti or 3070 for a reasonable price, those 6600 XT/6700 XT prices are a decent alternative. I just wish the 6800 was stocked and priced as well as the other parts.

Dr. Video Games 0031 fucked around with this message at 07:55 on May 7, 2022

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lih
May 15, 2013

Just a friendly reminder of what it looks like.

We'll do punctuation later.
there have been murmurings that the 6800 never had a great margin for AMD and binning for the Navi 21 ended up better than expected so they were able to just put most of the chips towards the 6800 XT and 6900 XT which is why supply for it has been so bad in comparison. it's apparently going to be completely replaced by the 6750 XT when it launches soon

Agreed
Dec 30, 2003

The price of meat has just gone up, and your old lady has just gone down

Brief update, m.2 NVME SSD temp seems to have more to do with the drive than with where it is. My Inland Professional 2TB is based on older tech and won't win speed contests against other Gen3 drives but it runs exceptionally cool, even behind my GPU shroud where I was afraid to mount one it idles at motherboard ambient temp and only gets in the 40s under extended write load, with no heat sink on.

Not sure I'd recommend it on any other basis than great price and low temps, since I had two die right off the bat, but that could be an issue affecting one lot as they has very similar serials. My Hynix Gold P31 drives max Gen3 speeds while the Inland doesn't reach them for sustained and has about half the random performance with higher queue depths (very comparable with QD1 though), but you can get the Inland Professional for about $30 less at 2TB right now from Amazon if my horror story of two drives dying a day after installation doesn't scare you. Still hella faster than SATA at everything, and really cool running, fwiw

Shumagorath
Jun 6, 2001
My drives are a double whammy: SN850 in the Gen4 slot under a 73匹 GPU tops out around 47, ADATA 4TB in a Gen3 slot in a clear corner never breaks 30.

Bloopsy
Jun 1, 2006

you have been visited by the Tasty Garlic Bread. you will be blessed by having good Garlic Bread in your life time, but only if you comment "ty garlic bread" in the thread below

CoolCab posted:

midrange B550 should overclock a 3700x i would expect. something with OK VRMs - high end ones are for the like 16 core parts, you have half of those. i'd recommend faster ram because generally on ryzen the gains from overclocking are very marginal (precision boost overdrive which is kind of automatic overclocking is generally all you need) but gains from ram are non-trivial; 3600 CL16 is generally ideal. if you want to go into the weeds of ram overclocking where the gains tend to be on those platforms (temper expectations but in some applications including some games the gains are nontrivial) you wanna look up how to buy samsung b dies because they get the timings tightest.

Thanks for the heads up. Should the cpu work right out of the box on a b550? Or is that more of an issue with a Zen 3 to an older board? This is my first AMD build since a Athlon 64 3500+ so I知 hesitant to just dive right into the build.

CoolCab
Apr 17, 2005

glem

Bloopsy posted:

Thanks for the heads up. Should the cpu work right out of the box on a b550? Or is that more of an issue with a Zen 3 to an older board? This is my first AMD build since a Athlon 64 3500+ so I知 hesitant to just dive right into the build.

should do. more or less any b550 should be fine for a 3000 series chip like that, you're good. 5000 series it can be slightly more complex but most b550s should still be totally fine. it's because the mobo predates the chip (and you'd need a chip in there to update the BIOS), i don't think that's true of b550?

i've got a 3900x that i also run secondhand on an x570 and they're still excellent chips. you would also have a potential in socket upgrade although imo that's not worth it for regular 5000 chips maybe in a few years if the 5800X3D winds up a lot cheaper?

Bloopsy
Jun 1, 2006

you have been visited by the Tasty Garlic Bread. you will be blessed by having good Garlic Bread in your life time, but only if you comment "ty garlic bread" in the thread below

CoolCab posted:

should do. more or less any b550 should be fine for a 3000 series chip like that, you're good. 5000 series it can be slightly more complex but most b550s should still be totally fine. it's because the mobo predates the chip (and you'd need a chip in there to update the BIOS), i don't think that's true of b550?

i've got a 3900x that i also run secondhand on an x570 and they're still excellent chips. you would also have a potential in socket upgrade although imo that's not worth it for regular 5000 chips maybe in a few years if the 5800X3D winds up a lot cheaper?

Yeah, upgrading the cpu down the road is what I知 planning. My main build has a 3080 that I use for couch gaming on a 4K tv, but I plan on getting a 4080/90 when those come out so the 3080 will replace the 3070 I知 thinking and a zen 3 is obviously a better match. This new build will be used for 1440p gaming with a mouse and keyboard since I知 really tired of having to unplug the 3080 rig and bring it upstairs every time I want to play an fps or Stellaris or whatever. First world problems right there, for sure.

hamsystem
Nov 11, 2010

Fuzzy pickles!
Hypothetically speaking a 12700k and a 3080 should be plenty of horsepower for a 1440p gaming rig for at least a handful of years right? My wife and I are talking about getting back into PC gaming and I'm thinking about going ahead and building her machine now while I wait and see how AM5 and all the new GPUs coming this year shake out. She isn't overly picky about graphics as long as everything runs smoothe and she doesn't play a lot of AAA titles but I'd like her to be able to enjoy some eye candy when she does.

Bloopsy
Jun 1, 2006

you have been visited by the Tasty Garlic Bread. you will be blessed by having good Garlic Bread in your life time, but only if you comment "ty garlic bread" in the thread below

hamsystem posted:

Hypothetically speaking a 12700k and a 3080 should be plenty of horsepower for a 1440p gaming rig for at least a handful of years right? My wife and I are talking about getting back into PC gaming and I'm thinking about going ahead and building her machine now while I wait and see how AM5 and all the new GPUs coming this year shake out. She isn't overly picky about graphics as long as everything runs smoothe and she doesn't play a lot of AAA titles but I'd like her to be able to enjoy some eye candy when she does.

That cpu and gpu will crush 1440p with no issues for some time. Even more so with non-AAA games.

hamsystem
Nov 11, 2010

Fuzzy pickles!

Bloopsy posted:

That cpu and gpu will crush 1440p with no issues for some time. Even more so with non-AAA games.

That's kinda what I figured but I've been out of the PC loop for awhile. My last build was an i5 970 and a 560ti for reference.

Bloopsy
Jun 1, 2006

you have been visited by the Tasty Garlic Bread. you will be blessed by having good Garlic Bread in your life time, but only if you comment "ty garlic bread" in the thread below

hamsystem posted:

That's kinda what I figured but I've been out of the PC loop for awhile. My last build was an i5 970 and a 560ti for reference.

I have a 10700k and a 3080 that is great for 4K 60fps+ Ultra settings and it痴 overkill at times when I use it for 1440p.

hamsystem
Nov 11, 2010

Fuzzy pickles!

Bloopsy posted:

I have a 10700k and a 3080 that is great for 4K 60fps+ Ultra settings and it’s overkill at times when I use it for 1440p.

Thanks for the info. I don't mind paying for overkill now for longevity's sake so that sounds perfect.

Dr. Video Games 0031
Jul 17, 2004

Yeah, I have a 3080 Ti, and even at 1440p, there are some heavy titles I need DLSS for to have a smooth frame rate (especially when ray tracing gets involved). But for the most part, I expect these cards to have very good longevity at 1440p, even now, late into the generation.

Also, high-framerate gaming is sweet, and the 3080 does it very well at 1440p.

Dr. Video Games 0031 fucked around with this message at 18:43 on May 4, 2022

Rocko Bonaparte
Mar 12, 2002

Every day is Friday!
Is there something like PC Part Picker that can help me with a server-based workstation? I can source Xeons very cheaply and want to make sure I spec something that's all compatible. PC Part Picker doesn't have the newer stuff. It doesn't look like I have many choices so I can manually sort it out, but I'd take anything I can get to ensure I'm making something valid.

mom and dad fight a lot
Sep 21, 2006

If you count them all, this sentence has exactly seventy-two characters.
I don't know if this helps any Canadians, but if your poor and just need something now, this isn't listed on PCPartPicker: https://www.amazon.ca/gp/product/B08G5CH316

Yeah, it's a 1650 not-Super, but it's GDDR6, open-air (I think?) and $50 CAD less than all the other retail 1650s, even cheaper than a 1050 Ti. I'm kinda humming and hawing over it, as I've finally hit a road block clearing out my 7-year-old steam library with a 2200G, and 1650 Supers are double/triple the price.

Edit: Or I guess you could spend $50 more and get a 6500 XT. Lawl.

mom and dad fight a lot fucked around with this message at 19:46 on May 5, 2022

Raqqa Flocka Flame
Dec 14, 2017
So I have no experience building a PC, but I just finished my engineering degree, and my decade old ThinkPad wasn't cutting it when I had to run the ANSYS Workbench or PTC Creo modeling software. My only understanding is that I should ideally have a CPU and motherboard that's compatible with ECC RAM, and a beefy GPU. Except for the price (but I think I can get the CPU, GPU and motherboard used for <$1k) is there anything absurd about this build I should reconsider?

PCPartPicker Part List

CPU: AMD Threadripper 1950X 3.4 GHz 16-Core Processor ($689.99 @ Amazon)
CPU Cooler: Noctua NH-U9 TR4-SP3 46.44 CFM CPU Cooler ($79.95 @ Amazon)
Motherboard: ASRock X399M Taichi Micro ATX sTR4 Motherboard ($391.31 @ Amazon)
Memory: Crucial 64 GB (4 x 16 GB) DDR4-2666 CL19 Memory
Storage: Western Digital WD_Black SN850 500 GB M.2-2280 NVME Solid State Drive ($84.99 @ Amazon)
Storage: Western Digital Black 4 TB 3.5" 7200RPM Internal Hard Drive ($142.63 @ Amazon)
Video Card: PNY Quadro K6000 12 GB Video Card ($799.99 @ Amazon)
Case: Fractal Design Focus G Mini MicroATX Mini Tower Case ($68.98 @ Newegg)
Power Supply: SeaSonic FOCUS Plus Gold 650 W 80+ Gold Certified Fully Modular ATX Power Supply ($132.31 @ Amazon)
Total: $2390.15
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2022-05-05 18:54 EDT-0400

Dr. Video Games 0031
Jul 17, 2004

Micro Center recently lowered the price of their Asus 3070 Ti barebones: https://www.microcenter.com/product/646271/asus-bb-amd-performance-2-barebones-pc

$1000 for the 3070 Ti, the ROG Strix B550-F motherboard, a case with mediocre-looking airflow, a 750W bronze-rated PSU, and though it's not mentioned in the description, I believe it comes with a 240mm AIO (it's in the pictures and specs). You're technically saving something like $315 off the combined retail price of everything, though you'd typically want to use cheaper parts for some of the components when building out a system piecemeal. Even accounting for that, this is still a pretty good bargain for people building new systems.

The 3060 Ti prebuilt also seems to regularly be in stock at my local micro center for $700: https://www.microcenter.com/product/641959/asus-amd-value-barebones-asus-b550-f-rog-strix-gaming-amd-am4-atx-motherboard

Similar to the above, but a cheaper case (but with better airflow probably) and no cooler. It's still a pretty decent value. Especially since the 3060 Tis on their own seem to start at $550 right now. Put a 5600(/X) in there and you can build a pretty good midrange gaming system for less than $1200.

Dr. Video Games 0031 fucked around with this message at 07:43 on May 7, 2022

Screama
Nov 25, 2007
Yes, I am very cereal.

Raqqa Flocka Flame posted:

So I have no experience building a PC, but I just finished my engineering degree, and my decade old ThinkPad wasn't cutting it when I had to run the ANSYS Workbench or PTC Creo modeling software. My only understanding is that I should ideally have a CPU and motherboard that's compatible with ECC RAM, and a beefy GPU. Except for the price (but I think I can get the CPU, GPU and motherboard used for <$1k) is there anything absurd about this build I should reconsider?

PCPartPicker Part List

CPU: AMD Threadripper 1950X 3.4 GHz 16-Core Processor ($689.99 @ Amazon)
CPU Cooler: Noctua NH-U9 TR4-SP3 46.44 CFM CPU Cooler ($79.95 @ Amazon)
Motherboard: ASRock X399M Taichi Micro ATX sTR4 Motherboard ($391.31 @ Amazon)
Memory: Crucial 64 GB (4 x 16 GB) DDR4-2666 CL19 Memory
Storage: Western Digital WD_Black SN850 500 GB M.2-2280 NVME Solid State Drive ($84.99 @ Amazon)
Storage: Western Digital Black 4 TB 3.5" 7200RPM Internal Hard Drive ($142.63 @ Amazon)
Video Card: PNY Quadro K6000 12 GB Video Card ($799.99 @ Amazon)
Case: Fractal Design Focus G Mini MicroATX Mini Tower Case ($68.98 @ Newegg)
Power Supply: SeaSonic FOCUS Plus Gold 650 W 80+ Gold Certified Fully Modular ATX Power Supply ($132.31 @ Amazon)
Total: $2390.15
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2022-05-05 18:54 EDT-0400

The HDD looks out of place. Do you for sure need 4TB? Your system is already pretty expensive so I'd just get an SSD if you wanted a 2nd drive, or else just get a single 2TB M.2 drive.

Wibla
Feb 16, 2011

Raqqa Flocka Flame posted:

So I have no experience building a PC, but I just finished my engineering degree, and my decade old ThinkPad wasn't cutting it when I had to run the ANSYS Workbench or PTC Creo modeling software. My only understanding is that I should ideally have a CPU and motherboard that's compatible with ECC RAM, and a beefy GPU. Except for the price (but I think I can get the CPU, GPU and motherboard used for <$1k) is there anything absurd about this build I should reconsider?

PCPartPicker Part List

CPU: AMD Threadripper 1950X 3.4 GHz 16-Core Processor ($689.99 @ Amazon)
CPU Cooler: Noctua NH-U9 TR4-SP3 46.44 CFM CPU Cooler ($79.95 @ Amazon)
Motherboard: ASRock X399M Taichi Micro ATX sTR4 Motherboard ($391.31 @ Amazon)
Memory: Crucial 64 GB (4 x 16 GB) DDR4-2666 CL19 Memory
Storage: Western Digital WD_Black SN850 500 GB M.2-2280 NVME Solid State Drive ($84.99 @ Amazon)
Storage: Western Digital Black 4 TB 3.5" 7200RPM Internal Hard Drive ($142.63 @ Amazon)
Video Card: PNY Quadro K6000 12 GB Video Card ($799.99 @ Amazon)
Case: Fractal Design Focus G Mini MicroATX Mini Tower Case ($68.98 @ Newegg)
Power Supply: SeaSonic FOCUS Plus Gold 650 W 80+ Gold Certified Fully Modular ATX Power Supply ($132.31 @ Amazon)
Total: $2390.15
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2022-05-05 18:54 EDT-0400

You can get AM4 motherboards with ECC support. I would avoid buying an old threadripper.

Canna Happy
Jul 11, 2004
The engine, code A855, has a cast iron closed deck block and split crankcase. It uses an 8.1:1 compression ratio with Mahle cast eutectic aluminum alloy pistons, forged connecting rods with cracked caps and threaded-in 9 mm rod bolts, and a cast high

Raqqa Flocka Flame posted:

So I have no experience building a PC, but I just finished my engineering degree, and my decade old ThinkPad wasn't cutting it when I had to run the ANSYS Workbench or PTC Creo modeling software. My only understanding is that I should ideally have a CPU and motherboard that's compatible with ECC RAM, and a beefy GPU. Except for the price (but I think I can get the CPU, GPU and motherboard used for <$1k) is there anything absurd about this build I should reconsider?

PCPartPicker Part List

CPU: AMD Threadripper 1950X 3.4 GHz 16-Core Processor ($689.99 @ Amazon)
CPU Cooler: Noctua NH-U9 TR4-SP3 46.44 CFM CPU Cooler ($79.95 @ Amazon)
Motherboard: ASRock X399M Taichi Micro ATX sTR4 Motherboard ($391.31 @ Amazon)
Memory: Crucial 64 GB (4 x 16 GB) DDR4-2666 CL19 Memory
Storage: Western Digital WD_Black SN850 500 GB M.2-2280 NVME Solid State Drive ($84.99 @ Amazon)
Storage: Western Digital Black 4 TB 3.5" 7200RPM Internal Hard Drive ($142.63 @ Amazon)
Video Card: PNY Quadro K6000 12 GB Video Card ($799.99 @ Amazon)
Case: Fractal Design Focus G Mini MicroATX Mini Tower Case ($68.98 @ Newegg)
Power Supply: SeaSonic FOCUS Plus Gold 650 W 80+ Gold Certified Fully Modular ATX Power Supply ($132.31 @ Amazon)
Total: $2390.15
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2022-05-05 18:54 EDT-0400

Wibla posted:

You can get AM4 motherboards with ECC support. I would avoid buying an old threadripper.

I don't use either of these programs, but from what I can tell Ansys is bottlenecked by memory bandwidth. I think they're wanting to run in quad channel to get a little bit more performance. Raqqa, how many cores does your Ansys license allow you to use? You might not need a threadripper. From what I can tell, PTC Creo only uses a single core, so clock speed is huge for that.

change my name
Aug 27, 2007

Legends die but anime is forever.

RIP The Lost Otakus.

Wibla posted:

You can get AM4 motherboards with ECC support. I would avoid buying an old threadripper.

You can get a Ryzen 9 5950X for cheaper than that threadripper FWIW, which has the same number of cores and threads but is clocked faster and has more cache + will be easier to cool

Racing Stripe
Oct 22, 2003

Someone a few pages back recommended going for the Intel Core i7-12700F instead of i5-12600K or some other comparable chip. I'm trying to make sense of the comparison between the two, and I'm satisfied that the former will outperform the latter, but is the key that the i7-12700 has 12 cores and 20 threads, compared with 10 cores, 16 threads? The i5-12600 has a higher clock speed, but I understand that higher clock speed is not the number to look at anymore now that CPUs have multiple cores.

The comparison I'm looking at also says that the max TDP of 12700 is 65W, while the 12600 is at 150W. Is that extra heat generation the product of a higher clock speed, and the chip with more cores uses a slower clock speed to achieve better performance while generating less heat? As a corollary, if one generates less heat, does that generally mean that it draws less power?

I also have another little issue where I'm hoping not to have to swap out my 650 watt power supply. I'm running an i7-6700K and an RX 5700 XT with two SSDs and an m.2 and an air cooler and everything runs fine, but when you try to read up on advice on how much wattage is necessary the information is all over the place. Some people say that you need 1.5X or 2X as much wattage as the sum of the maximum power draw of all of your components, which would mean everyone needs like 850 watts at a minimum. Other people say that you don't need that much overhead, and also that your components will rarely even approach maximum power draw, and that they absolutely will never all do so at the same time. If they are to be believed, 650 watts should absolutely be sufficient. Is anyone here running a newer Intel CPU and a 3080 or a 6800 XT on a 650W PSU?

CoolCab
Apr 17, 2005

glem
it's not intuitive - you can't shop on clockspeed because different architectures have different properties at a given frequency, instructions per clock and other stuff makes more of a difference - but both of those chips are 12th gen and as such share that. there are other things that are relevant like the amount of cache it has available, some esoteric stuff like the die layout causing latency or whatever. it's honestly best to go look at benchmarks because the paper specs communicate very little - in games there's an uplift there, mostly because it's clocked higher. it's not a huge one. outside of games in multicore workloads there's more uplift because you have more cores. more cores means more heat.

there is an absolute 1:1 correlation between power draw and heat generated, they're describing the same thing using different metrics. your computer is ultimately just a resistive heater - a 500-1000w space heater. space heaters also don't list their thermal output in a different unit because they've already described exactly how much heat they'll output. however, the listed power draw like TDP and stuff is nowhere near that straightforward (AMD and intel calculate it very differently i think) so again the spec sheet isn't doing anyone many favours.

you totally can run a 3080 on a 650, particularly if you are willing to undervolt. it would be unwise or impossible to overclock it though (and GPU overclocking is very easy and safe, abet with a significant thermal impact) it's under spec though because those numbers are again kind of deceptive - 30 series in particular looooooooves to spike and that can trip the overcurrent protection on the PSU if it's close to limit and trigger a system shutdown. that's generally why people advise going a little higher - typically the devices will be more efficient at medium load (idk like 60-80% i think?) so some people want to overbuy so they pay less in power or don't have as severe thermal issues or whatever. it's a tradeoff.

Dr. Video Games 0031
Jul 17, 2004

Racing Stripe posted:

Someone a few pages back recommended going for the Intel Core i7-12700F instead of i5-12600K or some other comparable chip. I'm trying to make sense of the comparison between the two, and I'm satisfied that the former will outperform the latter, but is the key that the i7-12700 has 12 cores and 20 threads, compared with 10 cores, 16 threads? The i5-12600 has a higher clock speed, but I understand that higher clock speed is not the number to look at anymore now that CPUs have multiple cores.

The comparison I'm looking at also says that the max TDP of 12700 is 65W, while the 12600 is at 150W. Is that extra heat generation the product of a higher clock speed, and the chip with more cores uses a slower clock speed to achieve better performance while generating less heat? As a corollary, if one generates less heat, does that generally mean that it draws less power?

I also have another little issue where I'm hoping not to have to swap out my 650 watt power supply. I'm running an i7-6700K and an RX 5700 XT with two SSDs and an m.2 and an air cooler and everything runs fine, but when you try to read up on advice on how much wattage is necessary the information is all over the place. Some people say that you need 1.5X or 2X as much wattage as the sum of the maximum power draw of all of your components, which would mean everyone needs like 850 watts at a minimum. Other people say that you don't need that much overhead, and also that your components will rarely even approach maximum power draw, and that they absolutely will never all do so at the same time. If they are to be believed, 650 watts should absolutely be sufficient. Is anyone here running a newer Intel CPU and a 3080 or a 6800 XT on a 650W PSU?

The main thing the 12700 offers over the 12600K is two extra "performance cores," the big cores that give these chips the bulk of their performance. The 12700 also offers some extra cache, which helps with gaming. The clock rate difference is something like 100MHz, which is utterly insignificant.

Don't pay too much attention to TDP on Intel chips. The 12700 will pull up to a sustained 170W if you give it a heavy workload, though there might be a few motherboards that try to limit it out of the box. (As opposed to the 12600K's ~130W.) When gaming though, they're both going to be pretty similar, maybe with a 10 - 20W difference instead of a 40W one.

PSUs are generally most efficient at around 50% load, so that advice is mostly about keeping your power draw while under load in the peak of the PSU's efficiency curves. The 3080 also has odd power consumption behavior. The power management system will allow it to draw huge spikes of power for a millisecond at a time, and some PSUs can't cope well with this, resulting in random shutdowns. The end result is a mixed bag of trip reports from people using a 3080 with a 650W CPU. Some people have gotten away with it just fine, while others report random shutdowns while gaming. Nvidia themselves recommend a 750W PSU to go with the 3080, so honestly, I think you should play it safe and get at least that (or maybe a bit more so you don't have to do this again in a few years)

mom and dad fight a lot
Sep 21, 2006

If you count them all, this sentence has exactly seventy-two characters.

mom and dad fight a lot posted:

I don't know if this helps any Canadians, but if your poor and just need something now, this isn't listed on PCPartPicker: https://www.amazon.ca/gp/product/B08G5CH316

lol this jumped from $215 to $263 CAD today. gently caress me, I knew I should've jumped on it. :cry:

Racing Stripe
Oct 22, 2003

CoolCab posted:

it's not intuitive - you can't shop on clockspeed because different architectures have different properties at a given frequency, instructions per clock and other stuff makes more of a difference - but both of those chips are 12th gen and as such share that. there are other things that are relevant like the amount of cache it has available, some esoteric stuff like the die layout causing latency or whatever. it's honestly best to go look at benchmarks because the paper specs communicate very little

Yeah, the comparison I'm looking at shows about 15% better overall performance from the 12700, and I figure that's really the number to look at.


Dr. Video Games 0031 posted:

The main thing the 12700 offers over the 12600K is two extra "performance cores," the big cores that give these chips the bulk of their performance. The 12700 also offers some extra cache, which helps with gaming. The clock rate difference is something like 100MHz, which is utterly insignificant.

PSUs are generally most efficient at around 50% load, so that advice is mostly about keeping your power draw while under load in the peak of the PSU's efficiency curves. The 3080 also has odd power consumption behavior. The power management system will allow it to draw huge spikes of power for a millisecond at a time, and some PSUs can't cope well with this, resulting in random shutdowns. The end result is a mixed bag of trip reports from people using a 3080 with a 650W CPU. Some people have gotten away with it just fine, while others report random shutdowns while gaming. Nvidia themselves recommend a 750W PSU to go with the 3080, so honestly, I think you should play it safe and get at least that (or maybe a bit more so you don't have to do this again in a few years)

The thing I'm seeing says the 12600K clock speed is 3.7ghz, while the 12600 is 2.1 ghz. Maybe I'm looking at the wrong thing, and in any case it seems that other factors are more significant.

Thanks for the guidance on PSUs. I upgraded from 550 watts to 650 when I got the RX 5700 XT, and I reaaaly wish I'd gone 750 back then. I should probably go 850 to avoid this kind of thing in the future, as you said.

Dr. Video Games 0031
Jul 17, 2004

Racing Stripe posted:

Yeah, the comparison I'm looking at shows about 15% better overall performance from the 12700, and I figure that's really the number to look at.

The thing I'm seeing says the 12600K clock speed is 3.7ghz, while the 12600 is 2.1 ghz. Maybe I'm looking at the wrong thing, and in any case it seems that other factors are more significant.

Thanks for the guidance on PSUs. I upgraded from 550 watts to 650 when I got the RX 5700 XT, and I reaaaly wish I'd gone 750 back then. I should probably go 850 to avoid this kind of thing in the future, as you said.

You should be looking at max boost clocks since these chips can and will boost indefinitely when under load. Actually, now that I look at them, the 12700F and 12600K are the same in that regard, at 4.9GHz. I don't know what the 2.1 number you're looking at is. I can't find that anywhere.

edit: Ah, the 12700 is listed as having 2.1GHz base clock. The base clock isn't really relevant when the CPU is doing any real amount of work though.

Dr. Video Games 0031 fucked around with this message at 18:11 on May 6, 2022

Raqqa Flocka Flame
Dec 14, 2017

Wibla posted:

You can get AM4 motherboards with ECC support. I would avoid buying an old threadripper.

change my name posted:

You can get a Ryzen 9 5950X for cheaper than that threadripper FWIW, which has the same number of cores and threads but is clocked faster and has more cache + will be easier to cool

I'm not seeing any AM4 motherboards on PCPartPicker that support ECC. Does one have to change the BIOS or something to get that functionality? Or is it a situation where you can plug in ECC RAM and it uses it just without the error checking functionality? Because I kinda need that, which is why I thought I was limited to Threadripper and Xeon CPUs.

Canna Happy posted:

I don't use either of these programs, but from what I can tell Ansys is bottlenecked by memory bandwidth. I think they're wanting to run in quad channel to get a little bit more performance. Raqqa, how many cores does your Ansys license allow you to use? You might not need a threadripper. From what I can tell, PTC Creo only uses a single core, so clock speed is huge for that.

With Creo and ANSYS it only uses one core in the modeling phase. But in ANSYS during simulations, or calculations using finite element analysis it can use multiple cores. My current license allows me to use 4, but I'm planning on upgrading to a license that allows up to 12.

Beeb
Jun 29, 2003
Probation
Can't post for 26 days!
Checked the OP but just wanted to make sure: How much wattage overhead is good to have? Using PCPartpicker's build calculator I'm sitting at 584W with a 750W PSU, good enough or should I start shopping for an 850?

sushibandit
Feb 12, 2009

Been keeping putting off a full rebuild due to GPU insanity, but my current system feels like its getting closer to dying more every week, and it's long overdue for a downgrade from Win7 to Win10 anyway. Primary usage is gaming and audio/video media creation.

Last few builds have been Intel/Nvidia, so I want to go full-AMD this round. Have several SSDs and HDDs that will be pulled over from the old system, and I want to futureproof somewhat, hence the overly strong PSU and twice as much RAM as needed.

Running 1440p at 144hz monitor. Aiming for some variety of the 6800XT GPU, but specific model can differ based on availability and pricing.

Am I missing anything that should be blatantly obvious or overpaying on anything by a stupid amount? My goal here is putting the box together and then doing nothing to it for 5-6 years until a CPU/GPU upgrade is due.

PCPartPicker Part List

CPU: AMD Ryzen 7 5800X 3.8 GHz 8-Core Processor ($335.97 @ Newegg)
CPU Cooler: Noctua NH-D15 82.5 CFM CPU Cooler ($99.95 @ Amazon)
Motherboard: Asus TUF GAMING X570-PLUS (WI-FI) ATX AM4 Motherboard ($201.00 @ Amazon)
Memory: G.Skill Ripjaws V Series 32 GB (2 x 16 GB) DDR4-3200 CL16 Memory ($113.99 @ Newegg)
Memory: G.Skill Ripjaws V Series 32 GB (2 x 16 GB) DDR4-3200 CL16 Memory ($113.99 @ Newegg)
Storage: Samsung 970 Evo Plus 1 TB M.2-2280 NVME Solid State Drive ($119.38 @ Amazon)
Video Card: Gigabyte Radeon RX 6800 XT 16 GB GAMING OC Video Card ($903.97 @ Amazon)
Case: Fractal Design Meshify 2 ATX Mid Tower Case ($164.98 @ Newegg)
Power Supply: Corsair RMx (2021) 850 W 80+ Gold Certified Fully Modular ATX Power Supply ($134.99 @ Amazon)
Total: $2188.22
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2022-05-06 15:51 EDT-0400

Grand Fromage
Jan 30, 2006

L-l-look at you bar-bartender, a-a pa-pathetic creature of meat and bone, un-underestimating my l-l-liver's ability to metab-meTABolize t-toxins. How can you p-poison a perfect, immortal alcohOLIC?


Capn Beeb posted:

Checked the OP but just wanted to make sure: How much wattage overhead is good to have? Using PCPartpicker's build calculator I'm sitting at 584W with a 750W PSU, good enough or should I start shopping for an 850?

At least 100 watts is the general rec, I like more than that personally since I've had prior Very Bad Experiences with PSU malfunctions. I'd go with the 850 myself. You might add more stuff, new GPUs are rumored to require like double the power of the current ones, etc. But 750 vs 850 for that situation is basically personal preference/how much you want to spend/what deals you find.

Shumagorath
Jun 6, 2001

Capn Beeb posted:

Checked the OP but just wanted to make sure: How much wattage overhead is good to have? Using PCPartpicker's build calculator I'm sitting at 584W with a 750W PSU, good enough or should I start shopping for an 850?
As per DGV a few posts up, that PSU should cover you but depending on the age and make of your 750W an upgrade might serve you well. PC Part Picker put my latest build's maximum TDP over 700W, but in practise I've yet to get over 600W on all but the gnarliest benchmarks. That doesn't include spikes too fast for my UPS to display, though :tinfoil:

Beeb
Jun 29, 2003
Probation
Can't post for 26 days!

Grand Fromage posted:

At least 100 watts is the general rec, I like more than that personally since I've had prior Very Bad Experiences with PSU malfunctions. I'd go with the 850 myself. You might add more stuff, new GPUs are rumored to require like double the power of the current ones, etc. But 750 vs 850 for that situation is basically personal preference/how much you want to spend/what deals you find.

Yeah. I've got a 3070 coming and I think that'll suit me for a while as I've suddenly got bigger priorities in my lap, I just wasn't super certain. Thanks :)

Dr. Video Games 0031
Jul 17, 2004

A 750W PSU is perfectly adequate for a 3070. I wouldn't replace the PSU unless it's very old or has other apparent issues.

VelociBacon
Dec 8, 2009

Sorry but I didn't see the mobo thread anywhere - maybe it's dead.

Anyone flashed the BIOS on their gigabyte mobo recently? I have a Z390 Aorus Ultra and I don't want to lose the myriad of settings I've adjusted in there. Does flashing your BIOS firmware on these boards do that? It's gigabyte and it's a dual-bios board so I'm expecting the worst possible outcome, but it's for a vulnerability.

Shumagorath
Jun 6, 2001

VelociBacon posted:

Sorry but I didn't see the mobo thread anywhere - maybe it's dead.

Anyone flashed the BIOS on their gigabyte mobo recently? I have a Z390 Aorus Ultra and I don't want to lose the myriad of settings I've adjusted in there. Does flashing your BIOS firmware on these boards do that? It's gigabyte and it's a dual-bios board so I'm expecting the worst possible outcome, but it's for a vulnerability.
Take photos with your smartphone...? I'm pretty sure flashing has always reset settings to defaults (unless you somehow do it from Windows, which was a thing for at least one of my PCs and everyone here told me I was playing Russian roulette).

err
Apr 11, 2005

I carry my own weight no matter how heavy this shit gets...
any 12700k combo deals? unfortunately i missed the cpu + motherboard combo on newegg and it's the only thing i am missing

my original build:

PCPartPicker Part List: https://pcpartpicker.com/list/TrBQ6r

CPU: Intel Core i7-12700K 3.6 GHz 12-Core Processor
CPU Cooler: Noctua NH-D15 82.5 CFM CPU Cooler
Motherboard: MSI MAG Z690 TOMAHAWK WIFI DDR4 ATX LGA1700 Motherboard
Memory: Corsair Vengeance LPX 32 GB (2 x 16 GB) DDR4-3600 CL18 Memory
Video Card: EVGA GeForce RTX 3080 12GB LHR 12 GB FTW3 ULTRA GAMING Video Card
Case: Lian Li Lancool II Mesh ATX Mid Tower Case
Power Supply: Super Flower Leadex III Gold 850 W 80+ Gold Certified Fully Modular ATX Power Supply

Arrowsmith
Feb 6, 2006

SAGANISTA!
I was tempted to go with the Torrent Nano case for my new 12700k/Asus TUF Gaming OC 6900XT build, but the speculation about the absurd wattage expected of the top-end RTX 4000s, potential size issues for the larger SKUs, and reduced clearance behind the motherboard for cable management convinced me to get the full-size.

Now that it's put together I'm glad I went large because the cable management, particularly the chonky modular cables from the EVGA T2 1000W PSU, was difficult enough to manage as is, at least as a first-time builder. I just hope 1000 watts from a titanium-grade PSU will be enough if I go full-idiot with the next generation of GPUs.

The only issue I still have with this build is my Asus GPU's RGB doesn't seem to be recognized in Armory Crate, and thus can't be coordinated with my other components which are recognized properly. Anyone have any idea what to do or try? Thanks.

Beeb
Jun 29, 2003
Probation
Can't post for 26 days!

Arrowsmith posted:

The only issue I still have with this build is my Asus GPU's RGB doesn't seem to be recognized in Armory Crate, and thus can't be coordinated with my other components which are recognized properly. Anyone have any idea what to do or try? Thanks.

Have you checked out SignalRGB?

https://www.signalrgb.com/

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Arrowsmith
Feb 6, 2006

SAGANISTA!

Capn Beeb posted:

Have you checked out SignalRGB?

https://www.signalrgb.com/

Thanks for the suggestion, but I just tried it out and it recognizes even fewer of my devices. On a whim I reopened Armory Crate and for some reason it now recognizes the GPU so the issue seems to have resolved itself. Thanks anyway!

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