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ufarn
May 30, 2009
So with the 8C CPUs allegedly being 8+0 and 3900X being 6+6, are games etc on a 3900X going to run off one chiplet by default, or are we going to need Zen 2-specific optimizations to ensure you don't hit the IF accidentally?

Be fun if you got better frametimes in-game on a 3700X/3800X than on a 3900X, for instance.

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PC LOAD LETTER
May 23, 2005
WTF?!
Shouldn't matter since both dies are behind the memory controller and have equal access to the memory. Inter die latency should be decent and IF bus bandwidth more than doubled too.

edit: sounds good enough to me. TR and Epyc's issues with gaming weren't really related to inter die or inter CCX latency. It was because they had to use NUMA which isn't supported properly by most games or software. One of the big advantages of Zen2 is the off die memory controller means they get to use chiplets without needing NUMA anymmore.
\/\/\/\/\/\/\/\/\/\/\/

PC LOAD LETTER fucked around with this message at 15:56 on May 28, 2019

NewFatMike
Jun 11, 2015

I don't think so since all cores are one hop from the I/O die, but I'm also just some guy with no expertise.

If I understand correctly, Zen and Zen+ had latency issues because different cores had different hops to and from memory, and that was especially the case with SKUs like the 2990WX.

We won't know until benchmarks, I guess, but I'd like to know if my understanding is on the right track.

Cygni
Nov 12, 2005

raring to post

PC LOAD LETTER posted:

Then you give the Icelake U system DDR4 2400 too in order to make the comparison more apples to apples instead of giving it some absurd overclocking RAM.

If you were comparing two graphics cards, you wouldn't demand that each of them have the same memory speed for all the tests. Intel's memory controller (and announced products, with today's Dell launch) are at 3733 with LPDDR (3200 for regular DDR), and the max supported frequency for the Ryzen 3700U is 2400. That AMD can't match that frequency with Zen+ is AMD's problem.

Where the comparison falls down to me is not the specs, its that 3700U laptops with DDR4 2400 (like the Acer Swift 3 announced a few days ago) are going to be like half the price or less of the IceLake U laptops that are launching today. So yeah, looks like Intel can beat AMD's IGPs now, but you are gonna pay for it.

PC LOAD LETTER
May 23, 2005
WTF?!

Cygni posted:

If you were comparing two graphics cards, you wouldn't demand that each of them have the same memory speed for all the tests.
They're not discrete graphics cards though.

They're iGPU's that both will be stuck with system memory.

And the reality is frequently they'll be stuck in lower end machines with cheap RAM.

If there are some special higher cost models that do end up using this RAM but are low volume while the higher volume ends up using the more typical cheap stuff than its still perfectly legit and reasonable to expect they'd use the cheap stuff when benchmarking them too.

pixaal
Jan 8, 2004

All ice cream is now for all beings, no matter how many legs.


Benchmark is both ways and present both, explaining the above that RAM speed is going to be up to the laptop manufacturer for the most part.

Cao Ni Ma
May 25, 2010



Is there a list of 370/470 mobos that allow you to flash the bios without a cpu in them?

Stickman
Feb 1, 2004

pixaal posted:

Benchmark both ways and present both, explaining the above that RAM speed is going to be up to the laptop manufacturer for the most part.

This is the solution. If you bench only with equivalent RAM, you're isolating the graphical unit for testing, but you're missing an important component of real-world performance. Testing only at max-speed RAM is misleading if installed systems may not have max RAM.

It's like GN's CPU tests where they only pair with the most powerful GPU and mostly test games at low/medium settings at 1080p in order to try to find the CPU bottleneck points. It's great for people who understand the complete model can interpret the data, but it's misleading for consumers who might come away with the ideas like "an overclocked 9900k is a ~20% boost to game fps over a 2600X" when you're unlikely to see any difference at all for most common GPU/monitor/game configurations. Steve does add a few comments and charts on that, but I do wish he'd add more real-world-type comparisons.

Drakhoran
Oct 21, 2012

Asrock's engineers are apparently still smoking the good stuff. They're making a limited edition $999 X570 motherboard that watercools the god damned chipset:

https://www.youtube.com/watch?v=Mi3eaDKirPI

SwissArmyDruid
Feb 14, 2014

by sebmojo

Drakhoran posted:

Asrock's engineers are apparently still smoking the good stuff. They're making a limited edition $999 X570 motherboard that watercools the god damned chipset:

https://www.youtube.com/watch?v=Mi3eaDKirPI

I'm still disappointed that they haven't been the ones to make an ITX Threadripper board.

Also, Buildzoid is way down on ASRock, saying that on the surface, their X570 boards just look like warmed-over X470 boards.

PC LOAD LETTER posted:

edit: yeah they used much faster RAM (LPDDR4X-3733) on the Intel Icelake U system: https://www.anandtech.com/show/14405/intel-teases-ice-lake-integrated-graphics-performance

I'm shocked it didn't flat out curbstomp the AMD system more (it had 56% more bandwidth) with a disparity in system bandwidth like that for iGPU performance.

:eyepoop:

Cygni posted:

If you were comparing two graphics cards, you wouldn't demand that each of them have the same memory speed for all the tests. Intel's memory controller (and announced products, with today's Dell launch) are at 3733 with LPDDR (3200 for regular DDR), and the max supported frequency for the Ryzen 3700U is 2400. That AMD can't match that frequency with Zen+ is AMD's problem.

Where the comparison falls down to me is not the specs, its that 3700U laptops with DDR4 2400 (like the Acer Swift 3 announced a few days ago) are going to be like half the price or less of the IceLake U laptops that are launching today. So yeah, looks like Intel can beat AMD's IGPs now, but you are gonna pay for it.

PC LOAD LETTER posted:

They're not discrete graphics cards though.

They're iGPU's that both will be stuck with system memory.

And the reality is frequently they'll be stuck in lower end machines with cheap RAM.

If there are some special higher cost models that do end up using this RAM but are low volume while the higher volume ends up using the more typical cheap stuff than its still perfectly legit and reasonable to expect they'd use the cheap stuff when benchmarking them too.

Agreed, and worse, where this is actually important, the RAM is entirely likely to be soldered, rather than SODIMMs. OEMs aren't exactly known for soldering on great memory.

SwissArmyDruid fucked around with this message at 19:32 on May 28, 2019

Spiderdrake
May 12, 2001



There was actually a hardware canucks video a bit back where they tested an expensive gigabyte laptop handicapped with the single channel ram it normally ships with compared to just going dual channel. It wasn't pretty, and that's with a discrete good gpu! So let me know how their igpu performs with a single stick of 2133 or whatever nonsense, because oems are weird.

mdxi
Mar 13, 2006

to JERK OFF is to be close to GOD... only with SPURTING

Broke out the Kill-a-watt this afternoon to see what the actual system power usage was on my compute stack machines.

I currently have 2700s and 1600s in use, both with a listed TDP of 65W. Other than the CPUs, all 4 systems are identical.

I got an idle power usage of 24.5W -- that would be CPU at idle, stock HSF, 2 x 8GB DDR4 (3000MHz), 2 x 120mm fans, and a M.2 SSD.

Usage at 100% load on all cores+threads was 98.5W for the 1600 and 104.5W for the 2700. So the CPUs, at load, were burning 74W and 80W, respectively.

I'm really curious to see what the under-load usage of the 3900X will be, and how that will drop as it is underclocked. Fun times ahead!

shrike82
Jun 11, 2005

How tricky is it to replace a CPU? I'm thinking of upgrading a B450 board with a 1700 with a 3000 series CPU. I'm wondering whether I should get a new gen mobo as well (GPU is an RTX Titan, 64GB ram).

I vaguely remember the (3rd party) CPU fan clamp being a bitch to install. 1. Do people normally remove the parts surrounding the CPU (GPU, ram) to help with the install?

2. Are there any issues with the OS on a CPU change?

3. Can I expect to get the full performance of the CPU with a 1st gen board?

Sidesaddle Cavalry
Mar 15, 2013

Oh Boy Desert Map

shrike82 posted:

How tricky is it to replace a CPU? I'm thinking of upgrading a B450 board with a 1700 with a 3000 series CPU. I'm wondering whether I should get a new gen mobo as well (GPU is an RTX Titan, 64GB ram).

I vaguely remember the (3rd party) CPU fan clamp being a bitch to install. 1. Do people normally remove the parts surrounding the CPU (GPU, ram) to help with the install?

2. Are there any issues with the OS on a CPU change?

3. Can I expect to get the full performance of the CPU with a 1st gen board?

1. That's recommended, especially if you have fat fingers and aren't familiar with the fastening mechanism.

2. **Before you replace**, make sure you update your motherboard's BIOS firmware first to the latest iteration. Some boards' latest BIOS may be beta only and located somewhere aside from the typical manufacturer's site that they're located. Also, if you're on Windows, you may need to get in touch with their customer support to get your machine re-validated. Microsoft now gives a ton of help and dedicated staff just for this one job, so that part at least isn't frustrating.

3. Not noticeably at all. The only thing you're really limiting with your old board is that IIRC the 3000 series has more I/O than presented to you than the previous generation, as in, you can plug in more things into the CPU than your old board has slots/sockets for

Sidesaddle Cavalry fucked around with this message at 02:38 on May 29, 2019

Klyith
Aug 3, 2007

GBS Pledge Week

shrike82 posted:

How tricky is it to replace a CPU? I'm thinking of upgrading a B450 board with a 1700 with a 3000 series CPU. I'm wondering whether I should get a new gen mobo as well (GPU is an RTX Titan, 64GB ram).

I vaguely remember the (3rd party) CPU fan clamp being a bitch to install. 1. Do people normally remove the parts surrounding the CPU (GPU, ram) to help with the install?
This depends mostly on your case. (how roomy it is, does it have a cutout in the backplate for access to the rear heatsink mounting bracket, etc.) At minimum you'll want to remove the GPU for more access.

If you are not very experienced with diy PC building, I would strongly recommend doing a teardown to extract the mobo out of the case. It's much easier to work with large air coolers with the mobo out of the case. If you're really new, this is a pretty good tutorial on how to take a PC apart.

quote:

2. Are there any issues with the OS on a CPU change?

If using win10, no, though in may want to re-activate the license. Older versions of windows, maybe.
e: Sidesaddle Cavalry's BIOS thing is the super-important bit.

quote:

3. Can I expect to get the full performance of the CPU with a 1st gen board?

This is a question that many people want to know but we won't get answers for until launch & independent testing.

If your B450 board has meh power, you might have trouble with the high core count versions of the 3000 -- but if you're looking to just get an 8-core it should be fine.

Klyith fucked around with this message at 02:44 on May 29, 2019

Mr.Radar
Nov 5, 2005

You guys aren't going to believe this, but that guy is our games teacher.

shrike82 posted:

How tricky is it to replace a CPU? I'm thinking of upgrading a B450 board with a 1700 with a 3000 series CPU. I'm wondering whether I should get a new gen mobo as well (GPU is an RTX Titan, 64GB ram).

I vaguely remember the (3rd party) CPU fan clamp being a bitch to install. 1. Do people normally remove the parts surrounding the CPU (GPU, ram) to help with the install?

This isn't exactly what you were asking about, but before you lift the CPU cooler off the CPU give it a gentle twist back and forth to break the adhesion of the thermal paste. The AM4 socket doesn't hold the CPU in very hard so the CPU can sometimes get pulled out with the cooler if the thermal paste is too sticky and you don't take precautions. If the CPU does come out with the cooler just gently pry it off the cooler and set it down.

Also, make sure you have some isopropyl/rubbing alcohol, some paper towels, and q-tips to clean off the old thermal paste and some new thermal paste to apply when you reinstall the CPU and cooler.

SwissArmyDruid
Feb 14, 2014

by sebmojo
https://www.youtube.com/watch?v=Mi3eaDKirPI

ASRock has an AM4 ITX board with Intel mounting hole layout.

Honestly, I can't wait until AM5 rolls around and AMD can reasonably either work with Intel to standardize this poo poo, or something.

PC LOAD LETTER
May 23, 2005
WTF?!
Standardization would be great between both platforms but even if AMD wanted to Intel wouldn't want to I bet.

Last time they had the same HSF mounting and sockets was like the Socket 7 era I think?

BeastOfExmoor
Aug 19, 2003

I will be gone, but not forever.

mdxi posted:

Broke out the Kill-a-watt this afternoon to see what the actual system power usage was on my compute stack machines.

I currently have 2700s and 1600s in use, both with a listed TDP of 65W. Other than the CPUs, all 4 systems are identical.

I got an idle power usage of 24.5W -- that would be CPU at idle, stock HSF, 2 x 8GB DDR4 (3000MHz), 2 x 120mm fans, and a M.2 SSD.

Usage at 100% load on all cores+threads was 98.5W for the 1600 and 104.5W for the 2700. So the CPUs, at load, were burning 74W and 80W, respectively.

I'm really curious to see what the under-load usage of the 3900X will be, and how that will drop as it is underclocked. Fun times ahead!


This is super hilarious to me since I've been considering retiring my FX-8350 (don't judge, I got it for free) in my VM box in favor of a 1600 or 1700. I wasn't sure how much power savings I'd actually see, but the 8350 box idles at about 100w. Granted, this is with 4 spinning drives and a couple SSD's, but still..

Khorne
May 1, 2002

BeastOfExmoor posted:

This is super hilarious to me since I've been considering retiring my FX-8350 (don't judge, I got it for free) in my VM box in favor of a 1600 or 1700. I wasn't sure how much power savings I'd actually see, but the 8350 box idles at about 100w. Granted, this is with 4 spinning drives and a couple SSD's, but still..
What's drawing so much power at idle? I think 4 spinning drives can pull ~12w-32w while idle although modern WD reds pull sub 1w while sleeping. The SSD should pull sub 1w unless in-use.

Khorne fucked around with this message at 04:54 on May 29, 2019

BeastOfExmoor
Aug 19, 2003

I will be gone, but not forever.

Khorne posted:

What's drawing so much power at idle? I think 4 spinning drives can pull ~24-32W while idle although modern WD reds pull sub 1w while sleeping. The SSD should pull sub 1w.


I'm assuming its just the super inefficient Bulldozer 8 core CPU causing the 50w delta. There's nothing else in the box that would burn much power. It has a fanless GPU just to give me the ability to boot, a single fan cooler, and 32GB of RAM.

Khorne
May 1, 2002

BeastOfExmoor posted:

I'm assuming its just the super inefficient Bulldozer 8 core CPU causing the 50w delta. There's nothing else in the box that would burn much power. It has a fanless GPU just to give me the ability to boot, a single fan cooler, and 32GB of RAM.
Do you let the hard drives go into standby?

Also:




I guess my computer pulls crazy idle watts as well because it's a 3770k.

Puddin
Apr 9, 2004
Leave it to Brak
So what your saying is I would save money by upgrading. I'll pass that one on the the wife to make my case.

BeastOfExmoor
Aug 19, 2003

I will be gone, but not forever.

Khorne posted:

Do you let the hard drives go into standby?

That's a good question. 30 seconds of googling indicates that my hypervisor (ProxMox) should spin down the drive if its inactive, but I'm not sure how to confirm that.

Puddin posted:

So what your saying is I would save money by upgrading. I'll pass that one on the the wife to make my case.

It probably wouldn't completely pay for itself, but if I could get off my rear end and eBay the chip, motherboard, and 64GB of DDR3 I have sitting around I could probably come close to paying for a first gen Ryzen, B450 mobo, and 32GB of RAM with the proceeds.

Klyith
Aug 3, 2007

GBS Pledge Week

SwissArmyDruid posted:

Honestly, I can't wait until AM5 rolls around and AMD can reasonably either work with Intel to standardize this poo poo, or something.

Intel can't even keep to a standard in their own ecosystem for more than 2 generations tho

apropos man
Sep 5, 2016

You get a hundred and forty one thousand years and you're out in eight!

Klyith posted:

Intel can't won't even keep to a standard in their own ecosystem for more than 2 generations tho

SwissArmyDruid
Feb 14, 2014

by sebmojo
Yeah, let's not mistake can't for won't, here.

That said, Intel HAS retained the same 75mm hole spacing for mounting desktop coolers ever since LGA 1155, and LGA 1150, and LGA 1151, and LGA 1156. which means since 2010-2011, so, it's not *impossible* for them to hold to SOME kind of standard.

repiv
Aug 13, 2009

Noctua is working on a TR4 version of the D15 :getin:

eames
May 9, 2009

I like how they advertise their aircooler for 400W TDP like it's no big deal.

Reclines Obesily
Jul 24, 2000



Hey Moona!
Slippery Tilde
that passive heatsink looks awesome

Khorne
May 1, 2002
The reporting is unclear, but it also seems to be a new version of the D14/D15 line for normal CPUs too.

Khorne fucked around with this message at 18:51 on May 29, 2019

PC LOAD LETTER
May 23, 2005
WTF?!
Some interesting information about overclocking Zen2 ES chips. Final product should be about this good or better.

text version of post with punctuation intact (its a screenshot):

quote:

-4.8Ghz achievable on all cores
-4.4Ghz performs similar to 5Ghz 9900K in Cinebench (not surprising)
-5Ghz is doable but a challenge
-overclock for overclock Ryzen 3000 is still faster (in Cinebench?)
-5Ghz boost isn't infeasible
-5Ghz all core is pretty much a no go
-1.35v for all core 4.5Ghz (THIS is amazing)
-memory is being run very loose and slow to assure stability for testing

I'm assuming they were comparing a 8C Zen2 to the 9900K but it doesn't explicitly say so.

Also there is a off hand comment at the bottom of the screen shot about the RAM being used in most of the leaks as being pretty dang slow and higher latency (stuff like CL20-24 DDR4 2100 or worse I think) and that there really isn't a regression in memory latency to speak of with Zen2 in practice vs Zen1/+.

NewFatMike
Jun 11, 2015

Holy poo poo 4.8GHz is way better all core than I had expected. I was hoping for 4.5GHz boost all around.

Extremely excited for Threadripper, I will absolutely be getting that enormous loving Noctua cooler if it's hitting 4.8 with PBO.

MY RENDERS. RIP AND TEAR MY RENDERS.

K8.0
Feb 26, 2004

Her Majesty's 56th Regiment of Foot
I'd assume it's a 12c part based on the cinebench vs 9900k. AMD isn't suddenly beating Intel 13% clock for clock in cinebench.. Those clocks are pretty solid looking for a 12c part, especially given that it's a (probably late) ES and the retail products will probably be slightly better.

Really interested to see how well the memory controller does.

Combat Pretzel
Jun 23, 2004

No, seriously... what kurds?!

NewFatMike posted:

Extremely excited for Threadripper, I will absolutely be getting that enormous loving Noctua cooler if it's hitting 4.8 with PBO.
If you're air-cooling, pray to Baby Jesus that your mainboard BIOS has time constants on fan curves, otherwise the fan spooling from Precision Boost will drive you insane.

wargames
Mar 16, 2008

official yospos cat censor

Combat Pretzel posted:

If you're air-cooling, pray to Baby Jesus that your mainboard BIOS has time constants on fan curves, otherwise the fan spooling from Precision Boost will drive you insane.

but Noctua fans are fairly silent to start with.

Khorne
May 1, 2002

Combat Pretzel posted:

If you're air-cooling, pray to Baby Jesus that your mainboard BIOS has time constants on fan curves, otherwise the fan spooling from Precision Boost will drive you insane.
If that was happening to me I'd just plug the CPU fans in somewhere else and set it to a constant speed I find adequate.

Inconsistent or loud noise from my pc drives me insane.

Khorne fucked around with this message at 22:17 on May 29, 2019

Malcolm XML
Aug 8, 2009

I always knew it would end like this.

SwissArmyDruid posted:

That 100 GbE looking like a bottleneck instead of a feature, all of a sudden.

Good news! 400Gbe is gonna be shipping soon.

barnold
Dec 16, 2011


what do u do when yuo're born to play fps? guess there's nothing left to do but play fps. boom headshot
Brief conclusion to my RAM woes in case anyone else stumbles into this thread racking their brain. I returned the extra RAM and extra PSU I ordered and went back to square one with the 2x8GB HyperX Fury and 2x8GB EVGA SuperClocked. The X470 Taichi did something on first boot that the B350 Tomahawk did not - it automatically detected an optimal latency setting for the four sticks of ram. So despite trying a full CL17 setting previously, with a timing of 16-17-17-37, the system boots totally fine with no blue screens. Great success? Who knows, but I guess moving to X470 wasn't as useless as I thought.

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NewFatMike
Jun 11, 2015

Combat Pretzel posted:

If you're air-cooling, pray to Baby Jesus that your mainboard BIOS has time constants on fan curves, otherwise the fan spooling from Precision Boost will drive you insane.

Oh yeah, I've got a Meshify C and it's got all the slots for fans. That's going to be moving some air. It'll take up to 360mm fans.

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