[MEncoder-users] Nvidia Cuda or ATI Avivo Support

[Matus UHLAR - fantomas]

>  On 2011.01.04 at 21:34:21 +0000, Carl Eugen Hoyos wrote next:
> > > My understanding is that they both roughly do the same thing.  It currently 
> > > takes me almost 8 hrs to encode an average 720p HD stream from MPEG2 -> 
> > > H.264, and my understanding is that you can cut that time by 50% or more 
> > > with CUDA/Avivo enabled encoders.
> > 
> > Sure. Don't you think it will reduce quality by 75%?
> > Did you try x264 --ultrafast?

On 05.01.11 01:05, Vladimir Mosgalin wrote:
> I'd like to post this link to prove these words - well not 75% but it
> really looks like with current official intel, amd and nvidia gpu-accelerated
> encoding solutions in windows you have to pay in quality for what you
> gain in speed, and the price is pretty noticeable, with CUDA being total
> disaster, especially. It's from fresh Sandy Bridge processors review by
> anadtech.
> 
> http://www.anandtech.com/show/4083/the-sandy-bridge-review-intel-core-i5-2600k-i5-2500k-and-core-i3-2100-tested/9
> 
> (also it's pretty noticeable that nothing but intel 2 days fresh
> solution is really faster than modern multicore CPU..)

this seems to be mostly problem of used algorithms, not the architecture itself,
with the exception of floaint point numbers' precision.

Maybe a combination of those two could be found that would be fastest
without quality loss
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