There will be little to no difference between either. Gigabyte looks like it is clocked faster, so may give you a few more FPS in gaming, but they will be the same for video editing. My suggestion, buy a GTX 770 with 3GB VRAM. THAT will help you with you video editing. Also, will help you with your gaming, as many games now utilize more than 2gb of ram. At this point, 2GB is actually inadequate. With higher resolutions screens and higher res textures, I would personally suggest you strongly consider at least the 3GB version over the ones you mentioned