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KS posted:I'm sitting on the sidelines because I refuse to go back to the bad old days of chipset fans. I'd buy an x470 -- it's not PCIE 4.0 that's stopping me, but I really want a USB-C header for a front USB-C port. That doesn't seem to exist, especially in an ITX format. Maybe I'm just misinformed. Yeah, the biggest thing that's kept me from moving in and building a new computer is motherboard selection. I want to go ITX, but none of the motherboards seem that compelling or are reviewed well.
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# ? Mar 11, 2020 21:35 |
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# ? Jun 1, 2024 00:58 |
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Nomyth posted:Was the arrangement to use the old GloFo process for the chipset just temporary? I have to believe the x670 or whatever won't consume as much power
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# ? Mar 11, 2020 21:37 |
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Paul MaudDib posted:x264 doesn't make huge use of AVX-512 as I recall but if they can run the 512-bit units as 2x256b units like Skylake-X can, then that would probably be another 30%-ish real-world boost. The numbers will be higher for x265 since that does use AVX-512 heavily, I'd even believe more than 50% speedup on that. Another possibility is that AMD does a half-step and implements AVX-512 on top of 256-bit units, since AVX-512 added a bunch of useful new instructions on top of AVX2 in addition to doubling the width.
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# ? Mar 11, 2020 21:40 |
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repiv posted:Another possibility is that AMD does a half-step and implements AVX-512 on top of 256-bit units, since AVX-512 added a bunch of useful new instructions on top of AVX2 in addition to doubling the width. this seems likely. lacking AVX-512 is a pretty advantage if you need it. HPC, even general purpose code can use it with some effort straight 2x gain if the unit is 512 bits. I expect them to have it for all the HPC clusters they announced
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# ? Mar 11, 2020 21:46 |
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I doubt the process is why the chipset consumes so much power -- Intel went back to 22nm for chipsets for a while there, and were still able to passively cool the things. I suspect the power issue is: orcane posted:IIRC the point of X570 was harvesting Zen 2 IO dies (Also x570 chips aren't literal harvested Zen 2 IO dies. Not sure if that's what you actually meant, or just that they took a bunch of the IO die's layout and copied it. X570 is on 14nm and the zen2 IO chip is 12nm.)
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# ? Mar 11, 2020 22:01 |
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Klyith posted:(Also x570 chips aren't literal harvested Zen 2 IO dies. Not sure if that's what you actually meant, or just that they took a bunch of the IO die's layout and copied it. X570 is on 14nm and the zen2 IO chip is 12nm.) I think that slide was confirmed wrong at this point, they're both 12nm. Possibly a brain fart from the engineer doing the slide since 12 is really a 14+ anyway. It's a 14nm class node, as opposed to a 7nm class node or whatever.
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# ? Mar 11, 2020 22:04 |
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x570 basically functions as a PCIe switch. All of the PCIe 4.0 switches capable of lots of throughput ive seen are actively cooled and pretty dang big, like the one from Microsemi thats used in some server backplanes and stuff. Moving all that data around is apparently pretty intensive.
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# ? Mar 11, 2020 22:12 |
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Paul MaudDib posted:Zen1/Zen+ run 256-bit operations on 128-bit units taking two cycles. Zen2 has 256-bit units and runs 256-bit operations in one cycle. I guess the other big tweakable parameter would be # of AVX execution units per core, since its not necessarily 1:1. Seems hard to find much details on those sort of specs though even for existing CPUs though.
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# ? Mar 11, 2020 22:29 |
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sincx posted:Wow Microcenter has the 3900X for $400. Still couldn't justify the extra $100 for four extra cores, so I went with the 3800X. Besides, it feels like an absolute beast compared to the 2700X.
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# ? Mar 11, 2020 22:59 |
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I remember old Intel 775 mobos having massive heatsink assemblies with heatpipes connecting the VRM to the northbridge to the southbridge. I know the 90nm integrated graphics northbridges back then were 25-30W and they were almost all passively cooled. So idk what AMD is thinking
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# ? Mar 12, 2020 17:02 |
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FuturePastNow posted:I remember old Intel 775 mobos having massive heatsink assemblies with heatpipes connecting the VRM to the northbridge to the southbridge. I know the 90nm integrated graphics northbridges back then were 25-30W and they were almost all passively cooled. 1. a fan is cheaper than a heatpipe 2. they might have needed to make major changes the PCB layout from previous x470 boards to make room for a heatpipe to snake around and go somewhere useful, which would have been expensive Seriously the mod to fix this on your own mobo if you have a fan that stays on all the time is the easiest mod in the world. A $5 heatsink and some thermal tape is all you need.
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# ? Mar 12, 2020 17:40 |
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Mobile Navi is coming, and the rumormill says it's looking good: https://www.hardwaretimes.com/amd-ryzen-7-4800hradeon-rx-5500m-laptop-30-faster-than-intel-i9-9980hknvidia-gtx-1650-3dmark/ I'm pretty stoked about this wave of Ryzen 4000 APU + dGPU laptops in general, whether they be Radeon or Nvidia.
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# ? Mar 13, 2020 01:17 |
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Zen3 is starting to show up in the Linux kernel. When previous Zen iterations came to market the release followed about six months later. So an August-October release is looking like a strong bet. That and recent deals and drops in price for Zen2 seems like a setup for an imminent release as well. I could see the entire 4000 series dropping at once, 6 months is pretty good space to dedicate Renoir chips to mobile exclusively while they build stock of all the leaky functional ones. So uh, rip Comet Lake, caught between Zen3 release and crazy good Zen2 and AF series processor prices. Actually, I wonder how the APU stack is going to look like, like will there be a 4700G or will AMD reserve all functional 8C Renoir's for mobile and we only get a 4600G? 229$ for 8C/16T 8CU, 159$ for 6C/12T 8CU, 99$ for 4C/8T 6CU? Maybe Athlon 4000G 4C/4T 4CU for 59$?
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# ? Mar 13, 2020 11:42 |
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I've been meaning ask ever since it was discovered that AMD's "7nm+" wasn't actually TSMC's 7+ EUV process - is AMD even going to be able to get something done on partial EUV? Is it even a good idea to do so (since processes optimized for low power aren't ideal for high perf chips)?
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# ? Mar 13, 2020 15:36 |
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That is most likely AMD's reason for sticking with 7nm. My immediate assumption on hearing that news was that AMD is likely betting that with process evolution and updated design it will give them higher performance than the first-gen 7nm+ EUV process. Availability is also probably a large concern. The mobile market will really want 7nm+ for the lower power consumption, so if the two are more or less equal in total performance, it makes sense for AMD to stick with 7nm and benefit from increased volume while Intel is at a weak point.
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# ? Mar 13, 2020 16:20 |
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https://www.anandtech.com/show/15615/amd-kicks-off-3rd-generation-desktop-ryzen-promotions-up-to-50-off The prices don’t look any different than we’ve already seen.
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# ? Mar 13, 2020 17:12 |
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sincx fucked around with this message at 05:50 on Mar 23, 2021 |
# ? Mar 13, 2020 20:33 |
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sincx posted:Does this mean Microcenter prices will drop even more? code:
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# ? Mar 13, 2020 21:35 |
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mdxi posted:
They’ve been this price all week.
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# ? Mar 13, 2020 21:48 |
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Only a $20 gap between the 3800x and 3700x at microcenter tilts the balance toward the 3800x but everywhere not so much...
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# ? Mar 14, 2020 06:33 |
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I just got a 3600 and anything you've heard about the stock fan being annoying is an understatement. I was going to give it a few months but it's not going to last a week. It was really easy to fit at least.
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# ? Mar 14, 2020 13:11 |
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Seamonster posted:Only a $20 gap between the 3800x and 3700x at microcenter tilts the balance toward the 3800x but everywhere not so much... In all the benchmarks I've seen it gets like 1-4% higher scores in synthetics and no higher in real life workloads, all while sucking a bunch more juice. Even a $20 jump isn't worth it.
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# ? Mar 14, 2020 14:27 |
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Yeah at same $ it would be a "why not" deal (you can set both CPUs to run identically to each other so the only advantage the 3800X would have is very slightly better binning) but whatever the 3800X is more expensive is better spent on a coffee or on a different part of the computer.
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# ? Mar 14, 2020 14:34 |
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Hey so I know 2700X can be kinda a power hog, and Zen 2 improved efficiency significantly over Zen+. I'm considering upgrading mine, just curious where the 2700X fits in terms of MAX power draw(thermal load) compared to the 3000 series. (don't quote me marketing TDP BS) Like I assume its more power than 3700X/3800X at same core count. Is it still more power than 3900X with 50% more cores? 3950X?
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# ? Mar 14, 2020 16:20 |
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Xaintrailles posted:I just got a 3600 and anything you've heard about the stock fan being annoying is an understatement. I was going to give it a few months but it's not going to last a week. Thats a little odd. I got a 3800x and it was running REAL hot. Ended up manually setting voltages and that made temps go WAY down. Maxing out with normal loads around 70C.
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# ? Mar 14, 2020 16:29 |
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peepsalot posted:Is it still more power than 3900X with 50% more cores? 3950X? No: [img[[/img]
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# ? Mar 14, 2020 17:20 |
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Newegg has what look like some decent combo deals on Gigabyte motherboards and AMD processors... I wasn't planning to build something new right now but it is very tempting.
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# ? Mar 14, 2020 19:45 |
Got all my hardware up and running so doing the detail work now. Should I be using the AMD Ryzen windows power plan thing I keep reading about? It's from 2017 AFAICT so maybe it's unnecessary now?
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# ? Mar 14, 2020 20:02 |
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GruntyThrst posted:Got all my hardware up and running so doing the detail work now. Should I be using the AMD Ryzen windows power plan thing I keep reading about? It's from 2017 AFAICT so maybe it's unnecessary now?
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# ? Mar 14, 2020 20:33 |
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There's also the 1usmus Power Plans that seem to work better for some people's setups, and with no real harm to you if it doesn't.
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# ? Mar 14, 2020 20:50 |
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sincx fucked around with this message at 05:50 on Mar 23, 2021 |
# ? Mar 14, 2020 23:43 |
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sincx posted:I bit the bullet and bought a 3900X along with a Asus Prime Pro X470 board that has a sticker saying it already has a Ryzen-3000 compatible BIOS. X470 is fine for 8 core..but 12 core might be pushing its VRMs. Maybe don't enable PBO just to be safe
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# ? Mar 15, 2020 00:00 |
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FuturePastNow posted:Newegg has what look like some decent combo deals on Gigabyte motherboards and AMD processors... I wasn't planning to build something new right now but it is very tempting. I've been waiting for a sale like this but they didn't include the x570 Aorus Elite in any of the combo deals so I'm not biting. I want that USB C front panel connector and I'm also not willing to take my chances with the Asus TUF considering their RMA in the US is a nightmare and I've had several bad experiences Asus boards.
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# ? Mar 15, 2020 00:14 |
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Lube banjo posted:X470 is fine for 8 core..but 12 core might be pushing its VRMs.
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# ? Mar 15, 2020 00:29 |
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ufarn posted:Prime Pro seems to be OK, although I don't know what the exact cut-off point is. PBO is a mess anyway. It will be totally fine.
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# ? Mar 15, 2020 01:40 |
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It will absolutely be fine. It’s the same power pulled by a 2700X. People freak the gently caress out about VRMs way too much. You’re not doing LN2 runs or prolonged prime95 runs on it, just make sure there’s some airflow over it and it’ll be fine.
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# ? Mar 15, 2020 03:50 |
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I have an MSI X570 board, is it better to use the MSI driver packs or should I get the ones off the AMD website? The AMD ones look newer.
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# ? Mar 15, 2020 04:04 |
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I always use the newest drivers I can get, rather than MSI's drivers (which are often very outdated)
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# ? Mar 15, 2020 04:25 |
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Drakhoran posted:No: Keep in mind that the 2700x has a decent amount of overclocking headroom (which zen 2 lacks). I suspect that if you take full advantage of PBO, it’s push the curve up closer to the 3900x.
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# ? Mar 15, 2020 09:11 |
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# ? Jun 1, 2024 00:58 |
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sincx posted:I bit the bullet and bought a 3900X along with a Asus Prime Pro X470 board that has a sticker saying it already has a Ryzen-3000 compatible BIOS. Just a note on these stickers. It's important to also check the date of manufacturer. I got a B450 mobo that had Ryzen-2000 compatible sticker, but worked with my 3600 without updating the BIOS first because the board was manufactured a month or so after the necessary BIOS update was released.
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# ? Mar 16, 2020 08:27 |