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So, I just recently got a Z790 UD (which has a coil-whine issue that's unresolved so far, but that's a different point).
I'm currently testing the heck out of everything and came across something that is pretty weird:
pretty much only some software (Prim95 or Linpack) run the cores at 100%; with or without AVX.
But when I do a more realworld test like with 7zip, it uses:
I mean, don't get me wrong, the CPU is still very fast (faster then my previous 3900X), but it's not using the processor to its full extent.
Why is that?
Also: if using singlecore tasks, it never uses just one core:
Any idea what the problem might be? Or is this expacted behaviour? (though, why would that be...) Any Bios setting I overlooked?
Thanks and cheers!
PS: I didn't have that problem with my 3900X "as much"; 1 thread was 100% and 24 threads were 2288%
I'm currently testing the heck out of everything and came across something that is pretty weird:
pretty much only some software (Prim95 or Linpack) run the cores at 100%; with or without AVX.
But when I do a more realworld test like with 7zip, it uses:
- single thread: 72% (should be 100%)
- all threads: 1815% (should be 2400%)
I mean, don't get me wrong, the CPU is still very fast (faster then my previous 3900X), but it's not using the processor to its full extent.
Why is that?
Also: if using singlecore tasks, it never uses just one core:
- for instance, if I benchmark with 1 Thread in 7zip, about two cores get used. One about 40, the other about 30% (it's very dynamic!)
Any idea what the problem might be? Or is this expacted behaviour? (though, why would that be...) Any Bios setting I overlooked?
Thanks and cheers!
PS: I didn't have that problem with my 3900X "as much"; 1 thread was 100% and 24 threads were 2288%