AMD Threadripper

[John P. Myers]

Officially announced today. It's real now. They can't take it back :p

http://cdn.wccftech.com/wp-content/uploads/2017/05/AMD-Threadripper-840x449.png

Buh bye Intel. It's been fun.

[zombie67]

Best part, it is completely free of the Intel Active Management Technology (AMT) security nightmare.

[DrPop]

Sweet! :) I was hoping the rumors were true!

[Fire$torm]

Now if only I had a REAL job........

[John P. Myers]

Now if only I had a REAL job........

You and me both :-<

[John P. Myers]

Intel is showing signs of desperation again. Just announced an 18c/36t i9-7980XE CPU in order to compete. These are compatible with the X299 motherboards. 165W TDP.

[DrPop]

Intel is showing signs of desperation again. Just announced an 18c/36t i9-7980XE CPU...

haha! They were so holding out on us too, and not going to give us anything bigger than 12/24 count for consumer market. This is why I think we all need to buy and build at least one big AMD rig later this years as a thank you for the competition. Yeah, I've heard the argument that it doesn't matter, Intel cranks out new stuff anyway, etc . . . but I guarantee they don't crank it out near as fast or give the consumer sector everything they could when they have no external competition!

[John P. Myers]

Exactly. Intel really has been screwing us over for the past several years because there was no competition from AMD. It's also 100% true Intel was only going to give us a max of 12c/24t with the X299 platform. Might ought to build a large AMD rig anyway because it'll likely still be much cheaper than an equivalent Intel system. :)

[pinhodecarlos]

Intel will have avx-512, AMD will lose again.

[DrPop]

Intel will have avx-512, AMD will lose again.

Sure, but the point was if AMD didn't release anything strong, then Intel would have held out on us AGAIN and only given that power to their $$$ making high-end corporate market.

[pinhodecarlos]

Sure, but the point was if AMD didn't release anything strong, then Intel would have held out on us AGAIN and only given that power to their $$$ making high-end corporate market.

Intel is doing what is suppose to do when someone has monopoly. I agree with you though. We were hostage on one cpu supplier but with AMD coming back, although for math projects still poor performance, it will bring the best from Intel.

[John P. Myers]

Intel's ridiculous price increases:

2751

The PCI-E lanes on the 7800X should read 28, not 29. Typo.

[John P. Myers]

AMD's Threadripper CPUs have confirmed support for 64 PCI-e 3.0 lanes. This will be available on every Threadripper SKU, regardless of core count, clock speed or price. Intel's $2k CPU only supports 44.

[Fire$torm]

SWEET!

[zombie67]

Intel will have avx-512, AMD will lose again.

Are there any BOINC apps that use this so far? I am wondering how long until avx-512 becomes an advantage WRT BOINC.

[DrPop]

Are there any BOINC apps that use this so far? I am wondering how long until avx-512 becomes an advantage WRT BOINC.

Good question, because it took a while for AVX to be used. And even now, only a handful of projects use it, and only AVX 2 works that good...I think my 3930K rigs (w/ AVX 1), AVX might be just a small percentage faster than comparable SSE3 work units.

[pinhodecarlos]

PrimeGrid will use it. Prime95 is already implementing AVX512 instructions to the client which will then be exported to LLR.

[John P. Myers]

AMD Threadripper 1950x 16c/32t flagship price reduced to $880 https://www.amazon.com/AMD-Threadripper-32-thread-Processor-YD195XA8AEWOF/dp/B074CBH3R4/ref=sr_1_1_sspa?ie=UTF8&qid=1508850636&sr=8-1-spons&keywords=threadripper+1950x&psc=1

[Bryan]

AMD Threadripper 1950x 16c/32t flagship price reduced to $880 https://www.amazon.com/AMD-Threadripper-32-thread-Processor-YD195XA8AEWOF/dp/B074CBH3R4/ref=sr_1_1_sspa?ie=UTF8&qid=1508850636&sr=8-1-spons&keywords=threadripper+1950x&psc=1

Can 2 of those be run together or do you have to move to a different (server) version?

[scole of TSBT]

Can 2 of those be run together or do you have to move to a different (server) version?
Threadripper appears to only be single CPU. Epyc is their Zen dual CPU architecture. It would make Dirk's day if you were to ask him about that

[Bryan]

Threadripper appears to only be single CPU. Epyc is their Zen dual CPU architecture. It would make Dirk's day if you were to ask him about that

:D Yeh, I'll have to do that ... then I could join the AMD Users team - NOT =))

[scole of TSBT]

Do you want to add AMD Epyc 7000 series CPU discussion here or move to a new thread?

AMD's info here...http://www.amd.com/en/products/epyc-7000-series

Here's a wiki page...https://en.wikipedia.org/wiki/Epyc

Hi-lites include...

Single or dual CPU config

16c/32t, 24c/48/t and 32c/64t CPU models

Base freq from 2.0-2.4 Ghz

All core boost from 2.55-2.9Ghz

8 memory channels per CPU

128 PCIe lanes per CPU

[Bryan]

After looking at the cost/CPU I don't think we need a new thread =)) $4700 per CPU (64t/CPU).

[DrPop]

Yeah, anything bigger than "enthusiast" level CPUs with 16C/32T still seems like crazy money...the corporations that buy the bigger stuff must have pretty deep pockets.

I just saw an article that pitted the AMD Threadripper 1950X against Intel's latest i9 7960X (I think it was, whichever one has same core/thread count) anyway, after all was said and done, and they O/Ced both to 4.0GHz, here was the verdict:

Intel CPU 16C/32T is ~30% faster, at same clock speed. However, it cost almost exactly twice as much. So...hard to say what's better if you have the money, I guess. But if price is a factor, that extra 30% is pretty expensive.

[John P. Myers]

Yep. Price/performance Threadripper easily wins. With Threadripper you also get 20 additional PCIe lanes, even if you only got the 8c/16t version.

[zombie67]

Any avx 512 boric apps yet? If/when they start showing up, it will be interesting to get some real world performance comparisons.


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[Bryan]

Rakesearch has an opti app for AVX 512 but I don't think anyone has showed up to use it yet. The Threadripper needs a special opti because it is slow executing some of the AVX2 instructions.

[scole of TSBT]

Memory recommendations for a Threadripper 1950X build?

[Bryan]

64G would be my guess. Then you can run anything your little ole heart desires.

[John P. Myers]

You'll want 3200Mhz (3600 is even better) with the best timings. You'll also want Samsung B-die chips so get G.Skill RAM. You'll also want 4 sticks for max bandwidth and at least 64GB as Bryan said.

Ryzen and Threadripper gain *very* significant performance boosts from good RAM. It's absolutely not something to skimp on anymore. The infinity fabric that allows data transfer between the Threadripper dies is directly tied to the RAM speed. Faster RAM here has the added benefit of increasing the bandwidth of the infinity fabric itself.

[zombie67]

Really good info! Thanks JPM!

[DrPop]

Not sure how fast you need the new rig, but Ryzen 2 is due out in March with a die shrink to 12nm. That should help make AMD more competitive, I would think especially in the efficiency department. (Unless they spend their "gains" all on speed instead.) As I understand it, you can get higher efficiency or higher speed out of a solid die shrink, or a little of each. Will be interesting to see which way they went and also if they added any tweaks to help their chips running AVX code, etc.

[zombie67]

Not sure how fast you need the new rig, but Ryzen 2 is due out in March with a die shrink to 12nm. That should help make AMD more competitive, I would think especially in the efficiency department. (Unless they spend their "gains" all on speed instead.) As I understand it, you can get higher efficiency or higher speed out of a solid die shrink, or a little of each. Will be interesting to see which way they went and also if they added any tweaks to help their chips running AVX code, etc.

https://www.anandtech.com/show/12233/amd-tech-day-at-ces-2018-roadmap-revealed-with-ryzen-apus-zen-on-12nm-vega-on-7nm?utm_source=twitter&utm_medium=social

Looks like v2 of Threadripper is not due until the second half of 2018. When a company gives a date range, it usually means the end of that range. So December. A year from now.




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[DrPop]

Bummer, didn't realize Threadripper was on a different schedule than their other chips. Makes sense though, they probably sell multiples of the others for every single threadripper, so have to get what sells out the pipeline first to support the other. Not to mention the higher complexity of the threadripper design.

[zombie67]

Ryzen price cuts! Some of them fairly significant. Your move, Intel.

https://www.anandtech.com/show/12238/amd-updates-ryzen-sku-pricing-to-counter-intel?utm_source=twitter&utm_medium=social


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[MindCrime]

Was just doing some wishful reading about threadripper. I see there's a "gaming mode," and from what I understand is that you can swap between a high bandwidth/higher latency memory profile or a lower bandwidth/low latency memory profile. I'd assume the gaming mode would be better for BOINC but I'm sure that varies with core usage and specific project/application behavior.

Another good reason, as JPM mentioned, to get the fastest/lowest latency memory you can find.

[Fire$torm]

I am contemplating selling off some old hardware including my current crunching rig and use the funds to build a Ryzen 7 1700X or Ryzen 7 1800X system. If I get serious about it, I'll start a thread for discussion.

Question: Am I wrong in assuming Ryzen will support Win7 Ultimate x64?

[Bryan]

Question: Am I wrong in assuming Ryzen will support Win7 Ultimate x64?

Gerasim is showing several that are running Win7.

[purplecfh]

I am currently thinking of replacing some old hardware with a new Ryzen build as well, but I am waiting on the detail/specs of the Ryzen 2 line up in April before I make any moves.

[Bryan]

Personally I'd wait and see if they fix the AVX problems.

[John P. Myers]

Intel uses 2 256bit AVX units per core. TR uses 4 128bit units, however for AVX 256 on TR, it can join 2 of the 128bit units together with no performance penalty. The problem with TR AVX is that one pair of 128 bit units can only do calculations on half of the intructions (like add only) while the other pair can do the other half (like multiply only). On Intel, each unit can do all instructions. This is why TR AVX is so slow in comparison. Same issue with Ryzen. Fingers crossed TR2 (and Ryzen 2) fixes this. No reason why it shouldn't be.