Send me the video, I shall go and troll him. There will not be bandwith issues, at all. That 3gb of vram is for resolution, basically if you are playing above 1080P 2gb of vram is needed, but 3gb of vram will not really be needed unless you will play at 5000x2000 or something like that. Regardless 2.1 or whatever runs the 7970 fine and will not bottleneck it at all.