Quote:
Originally Posted by Atak_Snajpera
Are you 100% sure that FMACs are not being used in integer calculations as well?
Haswell is noticeable faster in x265 than Sandy/IvyBridge (clock vs clock).
Looking at architecture I don't see anything special except new FMACs
http://www.anandtech.com/show/6355/i...architecture/8 |
You seem to confuse vector SIMD integer instruction set with vector SIMD floating point instruction set.
Haswell and above have AVX2 instruction set which enables 256 bit vector SIMD integer instructions leveraged by x265
Sandy & Ivy have only AVX which is for floating point (mainly).
So, no speedup for those processors.
Of course AVX2 has FMA3 too, which doubles the floating point throughput compared to AVX but that's a different story irrelevant to x265.
Quote:
Originally Posted by Atak_Snajpera
Chipzilla 16C/32T will destroy ThreadRipper 1950x in x265 by 1.6x factor.
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If that becomes a reality - 60% faster than 1950X - prepare yourself to use liquid nitrogen to freeze that CPU coming directly from hell, especially if Intel is still using that mustard between the CPU and heat spreader.
And you will need around 500W for that performance.