If you could buy any single CPU system for chess . . .

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ouachita
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If you could buy any single CPU system for chess . . .

Post by ouachita » Tue Sep 11, 2018 3:56 pm

All the real CC experts are here at Talkchess, so this should be an easy question. Which single CPU system would you build/buy? I'm just a lowly engineer playing a bit of correspondence chess. :D
SIM, PhD, MBA, PE

jdart
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Re: If you could buy any single CPU system for chess . . .

Post by jdart » Tue Sep 11, 2018 5:49 pm

For correspondence you'd want one of the higher end CPUs: the 16- or 18-core Intel i9 chips or the Ryzen 2990WX. The Intel i9-7960X is about even with the 2990WX according to Passmark scores.

These chips are really amazingly powerful for a desktop processor. Somewhat pricey though.

--Jon

ouachita
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Re: If you could buy any single CPU system for chess . . .

Post by ouachita » Wed Sep 12, 2018 1:01 am

Jon,
Thanks for your reply. Do we know for certain that more slower cores are preferable to fewer faster cores, e.g., are two 2.0GHz cores better than one 4.0GHz core, etc.?
SIM, PhD, MBA, PE

Geonerd
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Re: If you could buy any single CPU system for chess . . .

Post by Geonerd » Wed Sep 12, 2018 1:54 am

Check out http://www.ipmanchess.yolasite.com/amd- ... -bench.php
You'll find a wide variety of hardware. IMO, older server hardware can offer a great bang-for-the-buck value. Be sure to get plenty of memory to support large hash tables when running overnight "thinks."

jdart
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Re: If you could buy any single CPU system for chess . . .

Post by jdart » Wed Sep 12, 2018 8:12 pm

ouachita wrote:
Wed Sep 12, 2018 1:01 am
Jon,
Thanks for your reply. Do we know for certain that more slower cores are preferable to fewer faster cores, e.g., are two 2.0GHz cores better than one 4.0GHz core, etc.?
You have to look at the total system throughput, which depends on CPU cache and memory bandwidth as well as cores and clock. Best to use a benchmark like Stockfish bench.

Dann Corbit
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Re: If you could buy any single CPU system for chess . . .

Post by Dann Corbit » Wed Sep 12, 2018 8:21 pm

I am waiting until early next year when the 7nm AMD stuff gets released.
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Milos
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Re: If you could buy any single CPU system for chess . . .

Post by Milos » Thu Sep 13, 2018 1:26 am

jdart wrote:
Tue Sep 11, 2018 5:49 pm
For correspondence you'd want one of the higher end CPUs: the 16- or 18-core Intel i9 chips or the Ryzen 2990WX. The Intel i9-7960X is about even with the 2990WX according to Passmark scores.

These chips are really amazingly powerful for a desktop processor. Somewhat pricey though.

--Jon
Passmark scores are totally irrelevant since the proportion of integer operations performance in them is small.

ouachita
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Re: If you could buy any single CPU system for chess . . .

Post by ouachita » Thu Sep 13, 2018 1:39 am

Milos wrote:
Thu Sep 13, 2018 1:26 am
jdart wrote:
Tue Sep 11, 2018 5:49 pm
For correspondence you'd want one of the higher end CPUs: the 16- or 18-core Intel i9 chips or the Ryzen 2990WX. The Intel i9-7960X is about even with the 2990WX according to Passmark scores.

These chips are really amazingly powerful for a desktop processor. Somewhat pricey though.

--Jon
Passmark scores are totally irrelevant since the proportion of integer operations performance in them is small.
Milos,
I'm familiar with the Passmark high-end CPUs and Ipman's KN/s listing, but as I said I'm not an expert in these matters. I suppose Marco and his associates know the answer, but how does one go about selecting a system?
SIM, PhD, MBA, PE

ouachita
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Re: If you could buy any single CPU system for chess . . .

Post by ouachita » Fri Sep 14, 2018 8:00 pm

Come on, Milos or one of you other experts, spec a system for me
SIM, PhD, MBA, PE

Werewolf
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Re: If you could buy any single CPU system for chess . . .

Post by Werewolf » Fri Sep 14, 2018 9:11 pm

ouachita wrote:
Wed Sep 12, 2018 1:01 am
Jon,
Thanks for your reply. Do we know for certain that more slower cores are preferable to fewer faster cores, e.g., are two 2.0GHz cores better than one 4.0GHz core, etc.?
Absolutely not.

With more cores you get search inefficiency. 4 cores is roughly 3x faster than 1 core; whereas 1 core at 4 GHz is 4x faster than one core at 1 GHz.

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