Which is better, the 5770 512mb GDDR5 or the GT440 1GB GDDR5? I've searched a lot of articles and reviews and the 5770 wins against the GT440. But those reviews were of the 1GB variant of the 5770, I don't know if it makes a difference. Is the 5770 512mb really THAT better than the GT440 1GB, or are they just almost the same. Plus nowadays in my country its a pain to search for a 5770, and a GT440 costs almost the same. Would I miss out on a lot and really regret buying a GT440 over a 5770 performance-wise? And these are pretty much the only cards that I can afford to buy. And on another note, what about the 6670?
I only game at a screen resolution of 1366x768, just want to play games at the highest possible settings with smooth frame rates (40fps+), AA maybe about 2x only since above that it's hard for me to even tell the difference. Would I be able to do that with either one of these cards with games like, Skyrim, DotA 2, Prototype 2, Starcraft 2, Diablo 3, etc.? Thanks.
The GPU onboard the HD5770 is much better than the GT440 so it has much more raw power than the GT440. I have not seen a 512MB version of it before but it should be sufficient for your resolution. The GT440 would struggle more getting your desired frame rates.