Shooternz,
Sorry it has taken so long to respond.
I have verified that I can run a GTX 680 and a GTX 770 and get improved GPU accelerated performance in CC 2014. I had done this before but this last several days have been a nightmare here trying to re-verify my earlier results with a GTX 770 and a GTX 780., eventually I found out my GTX 780 crapped out and I am RMA[ng it back, Also to complicate the matter further my PCIe 3 slot appears not to be working any longer.
Now I cannot verify that your two specific cards will work together but I would speculate that they should. When you put your two cards in, run the CC 2014 version of GPUSniffer to make sure that both show up and you do not have any of the problems that frustrated me this week. I was getting (with our latest PPBM test) on the MPEG2-DVD GPU accelerated timeline with the GTX 680 or the GTX 770 Superclocked version (individually) about 27 seconds in my system. When both were installed it was 16 seconds..
I guess I have just about worn out that motherboard with all the changes I have made to it over time by installing and uninstalling many different cards especially GPU's. At latest count i have 12 different GPU's that have been in and out of that motherboard. The latest GPU was an AMD Radeon R9-280X and all the rest were of course nVidia GPU's
Edit:
- I know nothing about SpeedGrade, guess I will have to try it sometime.
- Without GPU acceleration (CPU only) the time to export that same timeline is 450 seconds, so it depends on how many MPE accelerated effects and features you use in your workflow