Originally Posted by martinhal
I have never understood the IBT Gflops thing. Mine does the same more with HT off.
Here are my results with HT on
yea, we have about the same gflops,
talking to someone over at anandforum, hes talking about my chip maybe a "victim of phantom instability"
"I think your overclock may be a victim of phantom instability. The error checking on the CPU is correcting the instability, but your performance is being hit in the process of it.
My reasoning behind this is that my i5-2500K at 4.4 GHz pushes 120 GFlops. Your CPU appears to be slower, despite the fact that at 5.0 GHz, it should be 15-20% faster due to Ivy Bridge's minor architecture improvements."
"Phantom" instability is exactly as I described. Modern CPUs are equipped with quite robust error correction capability. If your CPUs error correction catches something and corrects it, you won't see errors when running stability tests. It will, however, drop your performance.
There's more to verifying stability than "oh, my PC didn't crash when I ran IBT."
i thought he was talking about WHEA errors ..lol, but he said he didnt mean that,
but i cant remember any of our 5.0ghz 3770K running 140 gflops in ibt..
except the ones with very good ram have a bit higher gflops?