Choosing RAM for purely gaming: Latency or speed?


I'm updating my rig and got all the parts decided except memory. I've chosen G.Skills Ripjaws X -memory modules but I'm bit confused which one I should choose?

2x4Gb DDR3 1333 7-7-7-21-2N 50€~67$
2x4Gb DDR3 1600 9-9-9-24-2N 46€~62$
2x4Gb DDR3 1600 8-8-8-24-2N 66€~89$

As mentioned in the topic, this will be purely for gaming. So is the performance worth the higher cost? In the end it's not much but why pay 20€~27$ extra for practically nothing? And what about the 1333 with CAS 7, instead of 1600 with CAS 9?

My rig will be:
CPU: Intel Core i5-2500K
GPU: Radeon HD 6950 DirectCu II, 2 GB
MOBO: Z68 Extreme3 Gen3
2 answers Last reply
More about choosing purely gaming latency speed
  1. I would go with option 3 the 1600 with 8-8-8-24.
  2. Yeah you basically see cas latency increase as speeds go up , so in your case option 3 would be the best performance * as long as those advertised speeds aren't oc'd your memory will lower its cas latency..usually by 1 for each bump up into the next bracket of speed.
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