標題: APU for converting video or other files [打印本頁]

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作者: 孤寂使者    時間: 2011-9-5 14:49     標題: APU for converting video or other files

is there huge improvement for APU to convert video or other files?

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作者: 孤寂使者    時間: 2011-9-5 14:50




    i mean comparing with "pure AMD CPU'

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作者: kazenorin    時間: 2011-9-5 17:38

本帖最後由 kazenorin 於 2011-9-5 17:40 編輯



    not really...

if you would use pure CPU encoding,
an phenom 2 x4 would probably be much faster

if the use GPU accerated transcoding,
a handful of discrete graphics card does the job better

apu doesn't offer anything miraculous like quick sync from intel,
not now at least

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作者: 孤寂使者    時間: 2011-9-5 19:36



omg, didn't know that, thanks for telling but how about Bulldozer?

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作者: soarthroat    時間: 2011-9-5 19:42

if you wanna convert videos, APU should not be yr choice

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作者: kazenorin    時間: 2011-9-5 19:48




no one knows for certain,
but given that bulldozers could be 8-core processors,
and that pure CPU encoding benefit from more physical cores,
it should be at least as fast as 6-core Phenom IIs...

but still slower than GPU accelerated transcoding using fast graphics cards or QuickSync...

CPU transcoding delivers better quality products though

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作者: nopp    時間: 2011-9-5 22:21

等緊
8 core 做 VM 同 pure trans-code (non-gpu assist)  應該同 i7  quad 可以一併

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作者: 孤寂使者    時間: 2011-9-6 09:28




    i feel very curious why CPU delivers better video quality, logically GPU processes video more masterfully

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作者: 孤寂使者    時間: 2011-9-6 09:29

is it due to coding problems?

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作者: kazenorin    時間: 2011-9-6 12:05




    I'm a bit curious too,
maybe it's the nature of pure floating point calculations in GPUs,
where CPUs can use integers too

that's just a wild guess