Uncore

[hedgey]

Does it matter?
I've seen guides recommending 1:1, but then I see benchmarks that yield differences so minute its within the margin of error. I know its linked to DRAM, but my ram is only 1600mhz.

 

[pastymuncher]

I have mine 1:1 but I don't think it makes that much difference. I did it to get the maximum out of my cpu plus it was quick and easy to do. I do think it (and some other tweaks) gave me the edge to keep top i5 position in the cinebench thread until Skylale was released.

I just set min cpu cache to 8x, max cpu cache to 44x, cpu input voltage to 1.90v and cpu cache voltage overide to 1.300v. It was rock solid stable straight away.

 

[setter]

I was told when running haswell that 1-1 was the ideal situation. Though possibly a bit harder to tweak. But for general all round stability, uncore running 2-3x lower than bclk multi ratio was a good enough way to go.

 

[Brazo]

Up to a point no but it depends on generation of CPU. Haswell doesn't need to be 1:1. I've got my clock at 48x and uncore at 40. Only adds to the stability.

 

[Aretak]

When I was doing a little research before overclocking my new 6700K a couple of weeks ago, I found that one guide would tell me to leave it alone and the next would say to tweak it. TweakTown did some extensive testing of it though and it seems like it makes pretty much bugger all difference for Skylake at least, with a <1% impact on CPU performance and a minor impact on memory latency/bandwidth.

http://www.tweaktown.com/guides/7481/tweaktowns-ultimate-intel-skylake-overclocking-guide/index4.html