Is CAS Latency performance noticable?
December 5, 2012 8:49 AM Subscribe
What's the real world difference between CAS 9 and 10 for modern dual channel memory? For the last six months DDR3 1600 has been roughly double the price for CAS 9 v. CAS 10.
posted by mzurer to computers & internet (7 answers total) 2 users marked this as a favorite
All the articles I've found are at least a year old and aren't helping with the current product landscape.
Is CAS 9 really going to be snappier?
Please do not link to http://www.anandtech.com/show/4503/sandy-bridge-memory-scaling-choosing-the-best-ddr3 - I have read that and (I think - though I may be wrong) it doesn't addresses my current decision.
I have 2x4GB in my machine and I was going to buy another 2x8GB to add in - my existing RAM is DDR3 1600 CAS 9. I suppose I could purposefully slow it down to CAS 10 and see if I notice any difference, and if it is noticeable, spring for the CAS 9 in the additional chips.
In terms of where it would be used, I do a lot of RAW photo processing and that's about it. I actually have a sneaking feeling my budget video card may be a better target for performance upgrade dollars (I already run the system on an SSD - buying a huge one to to store photos seems like it is going to be a huge hassle in terms of clearing them off after processing is done), but I don't game at all and the card is already good enough for HD video playback, in addition to being lowish voltage/temp/noise.