Stockfish 070321 AVX 2 vs Modern Compile.

Hardware Threadripper 2950x, RTX 2080 TI, SSD 2 TB Evo 970 Plus.

Time Control 1m + 1s.
1 Core
Book Perfect Book 2021.
1024 Mb Hash
7 man tablebases.
Stockfish 070321 AVX 2 vs Modern Compile.

Code:

Score of Stockfish 070321 avx2 vs Stockfish 070321 x64 modern: 24 - 28 - 948 [0.498]
...      Stockfish 070321 avx2 playing White: 21 - 5 - 474  [0.516] 500
...      Stockfish 070321 avx2 playing Black: 3 - 23 - 474  [0.480] 500
...      White vs Black: 44 - 8 - 948  [0.518] 1000
Elo difference: -1.4 +/- 4.9, LOS: 29.0 %, DrawRatio: 94.8 %
1000 of 1000 games finished.

https://stockfishchess.org/download/windows/

With Stockfish Modern you mean the SSE4.1 + POPCNT version?

Admin wrote:

https://stockfishchess.org/download/windows/

With Stockfish Modern you mean the SSE4.1 + POPCNT version?

Yes. Modern is how Stockfish names SSE4.1 + POPCNT.


Instruction set / CPU

BMI2: recommended for most Intel processors and AMD Ryzen (Zen 3) details
AVX2: recommended for AMD Ryzen (Zen, Zen+, Zen 2) details
SSE4.1 + POPCNT: Intel processors after ~2008, AMD processors after ~2011 details
SSSE3: Intel processors after ~2006, AMD processors after ~2011 details
64-bit: Maximally compatible but slow
32-bit: Maximally compatible but slow

DEV builds
Windows x64 for Haswell CPUs
Windows x64 for modern computers + AVX2
Windows x64 for modern computers
Windows x64 + SSSE3
Windows x64
Windows 32
Linux x64 for Haswell CPUs
Linux x64 for modern computers + AVX2
Linux x64 for modern computers
Linux x64 + SSSE3
Linux x64