How do I go about choosing optimal RAM frequency?

BaronVonCable · Sep 1, 2014

I'm new at building computers. I've devised a parts list of things I want to build a gaming PC. I know the basics and how to assemble the parts, but I'm not sure which frequency to go with... What I have so far >>

MSi A88XM FM2+ Gaming Mobo
AMD A10-7850K Kaveri FM2+ 12-Core APU
(AMD Radeon Dual Channel 8Gb DDR3 1600)
Arctic Freezer A11 Heatsink /w Fan
(Upon it's release) --- XFX Radeon R9-285 2Gb GDDR5 GPU
..... and more .....

I've heard it's wiser to go with a faster RAM module, but I would like further input by more experienced individuals.

THANKS!! - Brett

Tradesman1 · Sep 1, 2014

Faster DRAM is favored for use with the iGPU of the APU, since you are going with a discrete Graphics card, then 1866 or better should be fine

Pinhedd · Sep 1, 2014

BaronVonCable :

The A10-7850K is not a 12-core CPU. It has 4 x86 Steamroller cores, and 8 GCN 1.1 compute cores for graphics and stream processing.

As for memory, APUs tend to like high speed memory and the A10-7850K supports DDR3-2133 natively. I'd go with that.

dextermat · Sep 1, 2014

Hi the frequency is something to consider but also the timing. The lower the cas the better : eg 1600 cl 11 would be similar to 1333 cl 9. So if you pick 1600 cl8 you would have great ram but usually lower cas = higher price.

BaronVonCable · Sep 1, 2014

Pinhedd :

BaronVonCable :

The A10-7850K is not a 12-core CPU. It has 4 x86 Steamroller cores, and 8 GCN 1.1 compute cores for graphics and stream processing.

As for memory, APUs tend to like high speed memory and the A10-7850K supports DDR3-2133 natively. I'd go with that.

I am aware of the core configuration, but overall, in a technical sense, there are 12 cores. Lol

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How do I go about choosing optimal RAM frequency?

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