Timestamp: 1422390458 Stockfish bench signature is: 8918745
i7 980 3.33 Ghz.
6 real cores
Ponder: Off.
GUI: Fritz 12
Book: Perfect 2014t – Limit 8 moves. Sedat –
No tablebases. No RTB used.
Hash 512
Relative Speed: 29.54
Knodes per second: 14.177
Time Control = 4+0
Stockfish 6 64 POPCNT_6x - Houdini 4 x64_st_X6_CT0 75.0 - 45.0 +39/=72/-9 62.50%
Stockfish 6 64 POPCNT_6x - Komodo 8 64-bit_6_NOB 70.5 - 49.5 +32/=77/-11 58.75%
Stockfish 6 64 POPCNT_6x - Gull 3 x64 XP 84.5 - 35.5 +54/=61/-5 70.42%
Time Control 2+2
Stockfish 6 64 POPCNT_6x - Houdini 4 x64_st_X6_CT0 70.5 - 49.5 +36/=69/-15 58.75%
Stockfish 6 64 POPCNT_6x - Komodo 8 64-bit_6_NOB 70.5 - 49.5 +30/=81/-9 58.75%
Stockfish 6 64 POPCNT_6x - Gull 3 x64 XP 78.5 - 41.5 +44/=69/-7 65.42%
Score using 6 cores: 449.5 – 270.5= 62.43%
720 games:
[You must be registered and logged in to see this link.] i7 975 3.33 Ghz.
4 real cores
Ponder: Off.
GUI: Fritz 12
Book: Perfect 2012t –Limit 8 moves. Sedat-
No tablebases. No RTB used.
Hash 256
Relative Speed: 20.62
Knodes per second: 9.899
Time Control = 4+0
Stockfish 6 64 POPCNTx4 - Houdini 4 Pro x64-A_OK 70.5 - 49.5 +31/=79/-10 58.75%
Stockfish 6 64 POPCNTx4 - Komodo 8 64-bit_4_NOB 74.0 - 46.0 +40/=68/-12 61.67%
Stockfish 6 64 POPCNTx4 - Gull 3 x64 XP 82.0 - 38.0 +51/=62/-7 68.33%
Time Control 2+2
Stockfish 6 64 POPCNTx4 - Houdini 4 Pro x64-A_OK 73.0 - 47.0 +36/=74/-10 60.83%
Stockfish 6 64 POPCNTx4 - Komodo 8 64-bit_4_NOB 73.0 - 47.0 +38/=70/-12 60.83%
Stockfish 6 64 POPCNTx4 - Gull 3 x64 XP 78.0 - 42.0 +42/=72/-6 65.00%
Score using 4 cores: 450.5 – 260.5= 62.57%
720 Games:
[You must be registered and logged in to see this link.] Segmenting by Time Control:
Fixed TC = 456.5 – 263.5= 63.40%
Incremental TC = 443.5 – 276.5 = 61.60%
Global Score: 900.0 – 540.0 = 62.50%
Against : Houdini 4.0 St. Ct0 (3136) = 60.21% ; 
Komodo 8 (3153) = 60.00%, 
Gull 3 XP (3103) = 67.29%
Average Estimated Elo Opponents = 3131
Estimated Elo Performance= 3218 Error bars: +/- 13 Elo points
This is a
new BEST SCORE EVER in my tests, although only 2 Elo points better than the previous leader Stockfish 6 Release Candidate 2 (3216).
According to my tests, Stockfish 6 is:
46 ELO stronger than Stockfish 5 (3172)
65 ELO stronger than Komodo 8 (3153)
82 ELO stronger than Houdini 4 (3136)
115 ELO stronger than Gull3 XP (3103)
For me this Stockfish 6 is a
great gift from the Stockfish Team. Thank you very much for your time, your effort, your organized work and your talent.
Smiling regards from Barcelona
Tom Casanovas 
