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Old 19th October 2020, 01:27   #2  |  Link
huhn
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Join Date: Oct 2012
Posts: 7,903
there are no consumer CPU with AVX512 yet.
the performance benefit from AVX512 is very questionable on the HEDT and SERVER CPU that support it (not unusual for first time implementations). these are called SIMD BTW.

yes modern codes in ffmpeg support the decoding using AVX2/AVX maybe even AVX512 for many many years now.
but that not as important because GPU have "commands" for 'H265 to do the decoding for free and that such high speeds that CPU decoding simply can't compete. so you get the same answer for your CPU as before doesn't really matter for video playback it'S a trivial task a modern GPU with modern codec support is far more important.

ampare doesn't really add new "commands" it pretty much just more cores if you really want to hear a new "command" it would be AV1 decode. which will be available as soon as a card is available (still needs development time obviously).

yes madVR call use a 3080.
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