Quote:
Originally Posted by mastrboy
So AMD is still way behind Intel in FPU performance pr core, or will there be future x265 optimizations for Ryzen/Threadripper that could close the gap?
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Quote:
Originally Posted by Atak_Snajpera
Nah. It is just 2xFMAC256 magic vs 2xFMAC128 in Zen.
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Quote:
Originally Posted by Atak_Snajpera
You are expecting too much from 2xFMAC128 vs 2xFMAC256.
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x265 has nothing to do with the FPU or the FMACs or floating point performance in general.
It's a pure integer app using AVX2 integers not FMA3 or FADD or FMUL or any floating point in general.
If someone gets a Monsterripper or Killerofskyalakex 16C/32T 1950X try both modes.
UMA and NUMA using x265.
UMA should be faster, but who knows.
Also make sure you saturate all 32 threads.