Over the last week the SuperPi 1M world records has been beaten numerous times by onepagebook, duck, coolaler, and a team consisting of joe_cool, no_name and predator. In the end though, it was Latvian overclocker TaPaKaH that came out on top. Despite a frequency disadvantage, duck's Intel Core 2 Duo E8500 was operating at 6544MHz when reaching 7.172 seconds, TaPaKaH was able to beat him by 32 milliseconds. The new world record is 7.140 seconds.
TaPaKah used an Intel Core 2 Duo E8600 overclocked to 6376MHz, almost 200MHz lower than the previous record. A bit surprisingly, he also had a lower system bus; 637.6 vs. 688.9MHz. What makes TaPaKaH's achievement even more amazing is that his score is with both cores enabled, duck had only one core enabled.
He had a much higher memory frequency though, and that may very well be what tipped the scales. His Kingston HyperX 14400 DDR3 modules were working at 956MHz, while duck's TeamXtreem 9600 DDR3 modules were only running with 1:1 divider, I.e. 688 MHz. duck did have tighter timings, but overall we would estimate that the higher frequency made up for that.
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TaPaKaH breaks SuperPi 1M record to 7.140 seconds!
Noctua
