Originally Posted by benben84
In most cases...I play on 1080p and 2GB is NOT enough.
If you play Skyrim and do any modding to it I would not even think twice about getting the 4GB model. I have the 2GB 670 and I have issues maintaining playability because of vram being used up, even at 50 some fps. I'm currently selling it to replace it with a 4GB model. I also plan to go SLI down the road so 4GB is the logical choice in my situation.
Besides Skyrim with a ton of Mods, there really is no need for a 3-4gb card @ 1080p. With a couple of mods in Skyrim, with my old 2 gb 460's SLI, I was only at 1.5gb of vram usage still with everything near maxed and with my 670 with everything fully maxed I'm at about 1.4gb vram. I'll install a couple more mods tonight (visual mods) and see how much higher it goes. However, with the exception of a heavily modded Skyrim most people will find 2 gb cards to be more than enough @ 1080p.