The performance gains are much bigger than i expected but i triple checked the results and there is well under 1fps difference between most runs at the same settings so if somebody else would like to give this a go to confirm or disprove my results it would be interesting Arma 3 stratis 1600-2133 15.369 % increase Arma 3 altis 1600-2133 11.477 % increase Test System 2600k ASUS Z77 MAXIMUS V GENE 2X4G SAMSUNG 2133 (10-10-10-24-1T used for all tests) Two 7970@1050\5600MHz crossfire is enabled not that it makes any difference at 1080p 2TB 7200RPM with OCZ Synapse 128G Cache Seasonic 1000W Platinum win7 64 cat 13.10 beta2 Tests were run at high detail 1920x1080 unlike last time on the alpha http://forums.bistudio.com/showthread.php?153524-CPU-VS-RAM-Performance-amp-CPU-Threading-Benchmarked with 16g 2400 c10 ram being within $20-50 of 1600 c10 ram i think this is useful information for those considering replacing there pc and goes against the results of other ram performance tests in games due to most other games being gpu bottlnecked --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Late edit with some new tests i have run some new tests on ram timings but there is obviously some inconsistency with the tests since i only bothered to run them all once with 1600 8-8-8 performing the same as 9-9-9 in one test and 9-9-9 performing the same as 10-10-10 in another this is just a hickup one 7970 is now dead so im back to a single gpu for these tests minimum fps in altis was to inconsistent to bother including current ram prices in au 2x4g 1333 9-9-9 $93 1600 11-11-11 $89 1600 9-9-9 $103 1600 8-8-8 $109 1866 9-10-9 $105 2133 11-11-11 $102 2133 9-11-10 $115 2400 10-12-12 $125 2x8g 1333 9-9-9 $152 1600 11-11-11 $175 1600 9-9-9 $203 1866 10-11-10 $199 1866 9-10-9 $205 2133 11-11-11 $205 2133 9-11-11 $225 2400 10-12-12 $229