GTX 260 or a more modern GTX card for CUDA video conversion??

[han_solo]

hi there,

Was wondering if a normal gtx 260 is enough for a piece of software (tipard) that uses cuda acceleration to convert video files?

...or is it the case that if i get a gtx 480 (or higher).. my conversion process would be even quicker?

thanks!!

 

[opethdisciple]

Im sure a 260 is sufficent.

 

[han_solo]

cool, thanks for the quick reply

 

[An Exception]

CUDA video conversion is basically unusable imo, from what I can tell, it's basically only a little faster than a decent CPU because it cut's corners with transcoding and doesn't render anywhere near the same IQ as the CPU can, in fact CUDA based transcoding looks AWFUL, therefore imo it's currently just a pointless gimmick that's of little value.

No doubt you will find this out for yourself soon though...

 

[han_solo]

hi Ejizz, seriously is CUDA that bad? do you have any links to substantiate your claims? I'm about to buy some software that claims to yield up to 6x performance by utilising the gfx card via CUDA!

 

[An Exception]

^^^
Yeh it is that bad, I'l find a link for you soon as I don't just make stuff up!, both my GTX470 and GTX460 sucked badly, as well as all other Nvidia cards I'm sure.
I was suckered in by all the marketing crap as well...

 

[An Exception]

CPU

6870

GTX460 (Yuk!)

CPU

6870

GTX460 (Yuk!)

http://www.anandtech.com/show/4083/...core-i7-2600k-i5-2500k-core-i3-2100-tested/9#

 

[han_solo]

holy kangaroo! -.- can it be a driver issue or something? Surely NV wouldn't allow CUDA to be this p*ss poor??

(thanks for the link and info.. very informative!)

edit: currently using phenom 2 x3 to do mkv conversions to mp4... takes me around 3 hours for a 5gb file. would upgrading my cpu help? if so, to what? thanks!

 

[An Exception]

Yes, upgrading your CPU would help, for now though I'd just overclock it and then maybe look at something like a 'Bulldozer' later, as I'v heard some positive rumours about this chip in terms of clocks...
Alternatively you could maybe swap out the 260 for a cheap 6870/50 or similar, if AMD's solutions works any better, and even if it does, it's still not as good as CPU and I'm not sure what file types are compatible, and from my personal experience a while ago, it didn't work too well with 64bit windows but not sure if that's changed since then or not.

 

[deuse]

It all depends on what program you use. Use a little no name program and the results are bad
but use Adobe Premiere Pro and the results are very good.

 

[An Exception]

^^^
"It’s worth mentioning one set of things that Premiere Pro doesn’t process using CUDA: encoding and decoding."

http://blogs.adobe.com/premiereprot...y-playback-engine-and-adobe-premiere-pro.html

I tried every Cuda based encoding program that was available 6 months ago, and all was junk.

 

[deuse]

^^^
"It’s worth mentioning one set of things that Premiere Pro doesn’t process using CUDA: encoding and decoding."

http://blogs.adobe.com/premiereprot...y-playback-engine-and-adobe-premiere-pro.html

I tried every Cuda based encoding program that was available 6 months ago, and all was junk.

"Because Premiere Pro CS5 can use CUDA to accelerate scaling, deinterlacing, blending, and many effects, many things that cause a red render bar in software-only (CPU)
mode only cause a yellow render bar in GPU acceleration mode. Even more things are accelerated by CUDA.

http://blogs.adobe.com/premiereprotraining/2011/02/red-yellow-and-green-render-bars.html

 

[An Exception]

^^^
So what? Cuda isn't being used to encode/transcode, and probably for a good reason.