Originally Posted by KSIMP88
Been years for me. Last I understood it, kinda, was with DDR. One.
So... stock is 1600 @ 9-9-9-25. I have them doing 1866 @ 10-10-10-28.
Which is better?
I don't mean this in a bad way, so please don't take offense, but simply stating the obvious...you have access to the hardware in order to make your own determination...a few simple benchmarks will give you the verdict.
It would be one thing is you were considering buying some gear and wanted to get opinions as to which is best, but when you already have the hardware, you are the one in the best position to make that determination.
As has already been mentioned, as a general rule the newer Intel products perform better at higher memory speeds versus lower clocks and tighter timings.
This article goes thru some comparisons/analysis that you might find useful. Keep in mind that when this was written, the differences in memory pricing between the DDR3-1600 and 2133 kits was greater than current pricing. And given that you already have the ram, pricing isn't even a factor in your decision.
This uncertainty together with pretty wide range of DDR3 SDRAM prices on modules with different specifications do not allow us to give specific recommendations regarding the best memory choices for Sandy Bridge platform. However, in general terms, you should keep in mind two things. Firstly, the memory frequency is of greater importance for the overall system performance than the memory timings. Secondly, the additional financial investments into faster memory may not pay back in the long run. In particular, high-speed DDR3-2133 and DDR3-1866 modules may cost 1.5-2 times more than the ordinary DDR3-1333 SDRAM.
http://www.xbitlabs.com/articles/memory/display/sandy-bridge-ddr3_8.html#sect0Edited by Reefa_Madness - 4/3/13 at 7:35am