Intel Burn Test Lower Speed (GFlops) with 6 Core?

ZXSpectrum · 31 Jan 2012 at 12:30

I have noticed that using a 6 core cpu generates lower GFlops in Intel Burn Test than the 4 core variant. Why is this?

i7 2600K(16Gb DDR3 1600Mhz) @ 4.3Ghz = 99Gflops
i7 990(24Gb DDR3 1600Mhz) @ 4.3Ghz = 60Gflops
i7-3960x(32Gb DDR3 1600Mhz) @ 4.7Ghz = 87Gflops

Possibly memory increase causing slower results?

reygjabla · 31 Jan 2012 at 20:02

I don't think so.

OLDPHART · 31 Jan 2012 at 20:52

Hi, try setting your threads to 12, as l run IBT with it set to 8 threads for my i7920.

zx128k · 31 Jan 2012 at 20:58

Setting the threads manually does seem to fix it. After doing this once the problem has gone away on auto as well for me.

ZXSpectrum · 1 Feb 2012 at 11:59

Nope threads set to 12 :confused:

Ah i see. .I use the Maximum setting for the ram in IBT