Originally Posted by Phobos223
THe 4850x2 will be faster... however they are f-in HUGE so make sure you even have room... also they are HOT, loud, and power hungry!!! What you should do is just try both in the games you play and if you really can't tell the difference when you play (dont go just on benchmarks) then run the 5770... I had both at one time for BONIC (didnt game on them) and ran them on a bench side by side, and the 4850x2 is just ridiculous.. just a big,hot, noisy bastard!
I'm aware of the size, heat, and noise issues with the 4850x2, but this has been something that has never bothered me. My stuff has always been load, etc. I had a water system with three high RPM 38mm Panaflos running full blast, so trust me, I know noise, lol. Also, as far as power, under a full load with my entire system, I would be consuming less than 400w, using the 4850x2. Those cards are always power rated way beyond what they need to be.
Still though, my main concern is higher resolution performance.