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Old 21-Aug-2011, 12:40   #1
fellix
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Default H.264 encoding - CPU vs GPU

Nvidia CUDA, AMD Stream, Intel MediaSDK and x264 -- performance and IQ comparison all across the board of modern software and hardware accelerated H.264 encoding:

http://www.behardware.com/articles/8...-and-x264.html
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Old 21-Aug-2011, 13:52   #2
Brad Grenz
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*phew*

Glad someone finally did the leg work, but the upshot seems to be that GPU accelerated h.264 encoding just isn't very good.
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Old 21-Aug-2011, 15:40   #3
Arnold Beckenbauer
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http://www.behardware.com/articles/8...-and-x264.html
Quote:
The Cyberlink application rules itself out in only offering baseline type H.264 encoding, which isnít up to handling action scenes.
Not entirely true: If you choose the PS3 profile, you'll get High. If you take the YT profile, you'll get Main.
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Old 23-Aug-2011, 00:41   #4
swaaye
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Quote:
Originally Posted by Brad Grenz View Post
*phew*

Glad someone finally did the leg work, but the upshot seems to be that GPU accelerated h.264 encoding just isn't very good.
Considering that it's been poor since I tried it on G80 years ago, I guess that some aspects to video encoding cause major performance issues with GPUs. The encoding process is being simplified.
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Old 23-Aug-2011, 04:09   #5
frogblast
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Quote:
Originally Posted by swaaye View Post
Considering that it's been poor since I tried it on G80 years ago, I guess that some aspects to video encoding cause major performance issues with GPUs. The encoding process is being simplified.
Alternatively, it's far easier to communicate to users "our encoder is faster!" than by trying to claim more subjective advantages. Such a situation actively encourages shortcuts to be taken during the encode process.
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