Which video card should I get?

Greetings,

So I'm planning on building a new gaming desktop and I have a sacrifice to make and I wanted you guys opinion on the matter. So I have a spare FX 8320 and Asus M5A97 R2.0 motherboard and I'm planning on using said FX 8320 in my new build. So I can either buy a Asus M5A99FX motherboard so I can get a better OC on my CPU (and yes I am buying an aftermarket cooler) with a EVGA GTX 770 4gb Classified or a EVGA GTX 780 3gb SuperClocked. Now I'd like to know what you guys would choose and why. Cheers.

If your system is primarily for gaming then keeping your existing mb and getting a 780 would be my recommendation. Only when you see that your games (and/or applications) are limited by your cpu frequency is it time to grab a new motherboard or by then perhaps by then it'll be more worthwhile to grab an entire new cpu & motherboard.

Alright. Sorry I forgot to mention what I do with my PC. I stream, render videos, and game. Thanks for the help.

Which programs do you use for rendering?  Do you know if they support hardware acceleration with Cuda or OpenCL?

I use adobe premier and I'm 90% it can use both Cuda and OpenCL.