Memory frequency vs timings

ZeniTimes · 27 Feb 2010 at 19:31

My current memory is stable at 8-8-8-21 @ 1066 and at 9-9-924 @ 1600. Not sure what I should use...

Is it better to have high freq or lower timings?

ZeniTimes · 27 Feb 2010 at 22:08

Thats what I was thinking, don't really understand what latencies mean.... Bandwidth thats easy.

I made a mistake it shoud have been 8-8-8-21 @ 1332Mhz. Would that make a diff?

Planning to set this up as a VMware workstation, so fast memory is a must

ZeniTimes · 28 Feb 2010 at 18:11

mmj_uk said:
Try both and see which you think is best, I think 1600mhz cas 9 will be better though given the 450mhz difference

Can anyone recommend some software I could use to bench mark memory? Free stuff is always better

EDIT: Dr. Google has come up with PassMark as a memory benchmarking tool + other stuff (CPU, GPU, etc...) however it's not free. Anyone ever used this?

ZeniTimes · 1 Mar 2010 at 19:39

I've got some results form Passmark, but how do I add a picture to my post??? :confused:

Basically did a comparison on the same BCLK, CPU freq, Uncore Freq and only adjusted the RAM timings and RAM freq.

9-9-9-24 @ 1600 - 1263.2
8-8-8-22 @ 1280 - 1284.2

The biggest difference was with allocating small block, with the 1280MHz settings out performing by around 6%

Corasik said:
So 4 clock ticks at 800mhz, or 8 clock ticks at 1600mhz will take exactly the same length of time. 9-9-9-24 @1600 is actually lower latency than 8-8-8-21@1332 , unless my math is out, you would need to have timings of 7-7-7@1332 to really have better latency than 9-9-9@1600

Your maths could indeed be out, not by much thou

ZeniTimes · 4 Mar 2010 at 21:50

Strangely when I benchmarked the above settings again using Everest I got the opposite results....!??! :confused:

One thing I've found with this memory is it doesn't really like any other settings apart from the manufactures recommended ones. I'll stick with these as I've got my overclock stable for 48 hours +

ZeniTimes · 4 Mar 2010 at 21:54

RBL said:
From the results of the benchmark posted above it looks like I will be better with setting my ram up to 1200mhz 7-7-7-20. Is that what I should have my RAM timings and frequency set to?

IMO the difference between the two would not be noticeable. if you are playing games you might notice a few frames extra. with my tinkering around I've found stability is key. Find what is most stable for you and keep that setting