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5850 video encoding

B

bigddybn

Supreme [H]ardness
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Nov 21, 2006
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Looking for some advice. I have a rig that does pretty much nothing but encode video lately. We have a huge DVD collection that is ripped (as VIDEO TS) to disk but it's become so large that it's a PITA to work with sometimes. I've been playing to different video formats lately to find something that is easier to work (specifically SMALLER file sizes) with while keeping video quality up. I've tried a few programs that seem to do the job nicely (handbrake, the new dvd fab, etc.) but I have so many to do that time is an issue.

Currently using an X6 1055t @ 3.5. It does a typical movie in decent quality in about 30 minutes. I have a spare 5850 that isn't being used really.

Would the 5850 do better than the X6? What do I need to do to utilize the 5850? Found the ATI avivo program but it doesn't recognize VIDEO TS folders making it fairly useless to me.

Would changing out the 5850 with a GTX 460 net me anything?
 
Most video converters the use the GPU are coded with CUDA. There are only a few with AMD Stream support, and I believe most of them are paid apps. Cyberlink's Espresso supports Stream, but I haven't used it so I can't say anything about performance, compatibility, or quality but I've heard some good things about it.
 
I've looked into this when trying to figure out my best upgrade path, and what I've found is that at the SAME QUALITY LEVEL the gpu encoding is "at best" less than 1.5x faster than the intel quad cores used in the tests I've read. Sometimes the CPUs were even faster. Most of those were with badaboom on nvidia 260 cards and 3800 series cards with avivo, so maybe it's gotten better. I haven't see any real up to date comparisons between something like handbrake on a 6 core vs GPU encoding. The one exception to this is the ipod/portable sized videos where the gpu's tended to be 4x faster.
 
At the same quality level (which is extremely low considering GPU encoders can only do baseline H.264), GPUs are far slower than any modern CPU running x264. And by modern I mean fast dual core and better.
 
A Core i7 + x264 is the best/fastest you're going to get.
 
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