I am thinking about upgrading the RAM in my desktop. I currently have 16 GB (4x4 GB)of Corsair Vengeance DDR3-1600 RAM. I paid a bit extra for this model last year as it was lower latency (8) as compared to the 9 or 10 standard of that speed.
My motherboard (Asrock 990fx Fatality Pro) supports up to DDR3-2100, but the timings are higher on those faster RAM specs and I don't see low latency models for those speeds.
So my question is: would there really be a performance difference in slower, lower latency RAM vs. faster, higher latency RAM? Does it really matter, or would I not be able to tell any difference?
CPU is AMD FX8350 (if that matters at all). I do gaming, some video editing/encoding, and lots of multimedia and multi-tasking.
Answer by IamTechCrazy · Feb 21, 2013 at 02:28 PM
You're not going to see a difference. You're already at the top of the threshold and you're only making a minor increase. This is an upgrade for the sake of upgrading and isn't really adding much benefit vs the cost.
Answer by hyderpotter · Feb 21, 2013 at 04:58 AM
If you have more than 16GB installed in your system, your most likely bottleneck would be your CPU (amount of cores and speed) and is only recommended if you have an insane amount of things running at one time on your PC, or you are planning on using the extra space as a RAMDisk (which is pretty useful if you want to look up what it is). The main thing to remember, too, is that CPUs can easily become bottlenecks with large amounts of memory installed, because all of programs you cram into the memory all take away resources from your CPU too.
Answer by Tim Fontana · Feb 21, 2013 at 05:38 AM
There really isn't much difference, although, I have heard that if you're using the integrated GPU on a Bulldozer/Vishera CPU (FX-XXX0) series, you want to be running the fastest RAM you can for the best performance.
In any other system, 1600MHz is the sweet spot for price at the moment.
Answer by Razor512 · Feb 21, 2013 at 04:18 PM
when it comes to overall performance after DDR3 1600 you really don't notice any performance boost unless you are using all other top end components (eg top end core i7 and top of the line videocard)
If you are using an AMD APU (onboard video), then you notice improvements right up to the fastest available DDR3 memory.