GPUs for 6k

[Alan Gordon]

Playback speeds with NV, even at 1080p, are appalling.
On a 4K timeline, forget it.

With both titans and 8 CPUs active I get about 10fps with neat video. Certainly not realtime, but with it in the 1st or 2nd node, and caching, I find it more than useable in 1080p.

 

[Mark Kern]

So I have a 290x here and a Titan Black. Any suggestions on how to test GPU performance in Red Cine-X Pro and Resolve to compare the two fairly?

 

[Phil Holland]

So I have a 290x here and a Titan Black. Any suggestions on how to test GPU performance in Red Cine-X Pro and Resolve to compare the two fairly?

One thought is exporting two proRes 4444 clips at 2K and 4K through both applications and checking the render times. In terms of realtime playback that's fairly simple to test.

 

[Alan Gordon]

One thought is exporting two proRes 4444 clips at 2K and 4K through both applications and checking the render times. In terms of realtime playback that's fairly simple to test.

I'm pretty sure 4k export is limited by Quicktime. I can play back full res and get faster than real time full debayer 1080 exports, but 4k to prores is less than realtime. Unfortunately I don't have a fast enough RAID array to test the theory with uncompressed dpx/tiff/exr files.