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AMD Threadripper 2990x seems out what is the gain vs 1950x ?

Posted: Mon Aug 13, 2018 2:33 pm
by Lion
Hello all,

It seems the AMD Threadripper 2990x is out and there are already several reviews/tests.....
I have however not been able to see any benchmark using chess engines such as Stockfish or Komodo or Fritz....

If any of you find something on it, looking forward on what you can share.

rgds

Re: AMD Threadripper 2990x seems out what is the gain vs 1950x ?

Posted: Tue Aug 14, 2018 5:10 am
by Joost Buijs
At Phoronix they show some benchmarks with Crafty and Stockfish 9.

https://www.phoronix.com/scan.php?page= ... dows&num=3

Re: AMD Threadripper 2990x seems out what is the gain vs 1950x ?

Posted: Wed Aug 15, 2018 9:47 am
by Joost Buijs
Some more benchmarks (Stockfish 9 and asmFish) and speed comparison with other CPU's.

https://www.phoronix.com/scan.php?page= ... 90wx&num=5

The 2990x seems to perform ~65% better than the 1950x for chess.

Re: AMD Threadripper 2990x seems out what is the gain vs 1950x ?

Posted: Wed Aug 15, 2018 6:28 pm
by Dann Corbit
Seems like a very good idea.
Compared to the server boxes I am running right now, it would be much less electricity and heat.
Not to mention a lot quieter.

I wonder how well it overclocks.

Re: AMD Threadripper 2990x seems out what is the gain vs 1950x ?

Posted: Wed Aug 15, 2018 6:52 pm
by Joost Buijs
Afaik it doesn't overclock very well without generating an enormous amount of heat, Intel processors usually have more headroom.
Another drawback is that PEXT/PDEP uses a lot of cycles on the Zen+ architecture, and that is a pity because you can do very interesting things with these. On the other hand you'll get a lot of computing power without having to give up an arm and a leg.

Re: AMD Threadripper 2990x seems out what is the gain vs 1950x ?

Posted: Thu Aug 16, 2018 3:52 pm
by Leo
It looks amazing. I guess this is AMDs latest and greatest CPU.

https://wccftech.com/amd-ryzen-threadri ... lock-leak/

Re: AMD Threadripper 2990x seems out what is the gain vs 1950x ?

Posted: Thu Aug 16, 2018 5:49 pm
by Joost Buijs
Leo wrote:
Thu Aug 16, 2018 3:52 pm
It looks amazing. I guess this is AMDs latest and greatest CPU.

https://wccftech.com/amd-ryzen-threadri ... lock-leak/
Yes, they managed to get it running on 5.1 GHz. with LN2 cooling, but that is not very useful for everyday work.
Personally I would be happy with 4GHz. all-core with air-cooling, for chess you only use the integer units, that means the chip will never be used at 100% load.

The scaling is a bit dissapointing, when you glue 2x 2950x together you would expect more 65% increase in performance. This is probably due to the NUMA architecture, most chess engines are unable to handle this correctly. If Intel releases a 28 core chip that can run at 4Ghz. with SMP instead of NUMA I will probably go for that (if it is not to expensive, but with Intel you never know).

Re: AMD Threadripper 2990x seems out what is the gain vs 1950x ?

Posted: Thu Aug 16, 2018 6:22 pm
by Dann Corbit
The 32 core threadripper also has stunted memory access.
I was rather surprised that it did so well on chess.
It seems that benchmarks for performances are hit or miss, sometimes even falling below the 16 core chip, depending on the task.

Re: AMD Threadripper 2990x seems out what is the gain vs 1950x ?

Posted: Thu Aug 16, 2018 9:05 pm
by Leo
Joost Buijs wrote:
Thu Aug 16, 2018 5:49 pm
Leo wrote:
Thu Aug 16, 2018 3:52 pm
It looks amazing. I guess this is AMDs latest and greatest CPU.

https://wccftech.com/amd-ryzen-threadri ... lock-leak/
Yes, they managed to get it running on 5.1 GHz. with LN2 cooling, but that is not very useful for everyday work.
Personally I would be happy with 4GHz. all-core with air-cooling, for chess you only use the integer units, that means the chip will never be used at 100% load.

The scaling is a bit dissapointing, when you glue 2x 2950x together you would expect more 65% increase in performance. This is probably due to the NUMA architecture, most chess engines are unable to handle this correctly. If Intel releases a 28 core chip that can run at 4Ghz. with SMP instead of NUMA I will probably go for that (if it is not to expensive, but with Intel you never know).
Liquid Nitrogen will not be used by the vast majority of people. If you buy Intel it will be expensive.

Re: AMD Threadripper 2990x seems out what is the gain vs 1950x ?

Posted: Thu Aug 16, 2018 9:54 pm
by Vinvin
No chess but Benchmark comparison and comments :
https://www.youtube.com/watch?v=QI9sMfWmCsk