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Finding World Record Primes Since 1996

PrimeNet CPU Benchmarks

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CPU speed range:
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Only display benchmarks reported since: (yyyy-mm-dd)
Model Intel(R) Core(TM)2 Duo CPU T8300 @ 2.40GHz
Stock Speed   2400 MHz
Features Prefetch,SSE,SSE2,SSE4
L1 Cache 32 KB
L2 Cache 3072 KB

Program Speed (MHz) 29.69M to 34.56M (1792K)34.56M to 39.50M (2048K)39.50M to 49.10M (2560K)49.10M to 58.52M (3072K)58.52M to 68.13M (3584K)68.13M to 77.91M (4096K)Trial fac 65 bitsValid Data?Select
Mac OS X 64-bit, Prime95, v27.9, build 1239467.2370.0089.54116.86145.42134.608.05
Windows, Prime95, v28.7, build 1239439.3043.0255.8670.4484.40106.61
Windows, Prime95, v25.11, build 2239442.2847.1361.6374.7589.99101.336.51
Windows64, Prime95, v26.6, build 3239442.5153.1349.8857.3472.0210198.976.65
Mac OS X 64-bit, Prime95, v28.7, build 1239476.2572.4269.7197.05109.08117.80
Windows, Prime95, v28.9, build 2239438.9541.9454.8373.3682.8693.94
Windows64, Prime95, v28.10, build 1239437.3941.0948.6365.0390.6091.22
Mac OS X 64-bit, Prime95, v27.9, build 1239466.5470.7188.59111.49136.29147.3013.21
Windows, Prime95, v29.8, build 62394
Windows, Prime95, v25.11, build 2239342.2847.1361.6374.7589.99101.336.51
Mac OS X 64-bit, Prime95, v27.9, build 1239337.8441.4149.6861.4773.0781.886.59
Mac OS X 64-bit, Prime95, v29.4, build 72393
Windows, Prime95, v25.11, build 2239342.9747.8262.4574.7491.17102.336.78
All timings are in milliseconds - lower is better