Near identacle. You'll get alot of people posting with reviews using old drivers, but comparing my fps vs thier 5770 fps shows that with new drivers, I get basically 4870 fps. It wins some, it loses some.
That depends. The 4870 with 1 GB is on par with the 5770 but the 512 mb version of the 4870 will far fall behind the 5770 in graphics intensive games.
Not completely, some games show the 4870 512mb and 4870 1024mb performing identically.
TBH, the 5770 is a better deal. It runs cooler, uses less power, and overclocks better. The only disadvantage to the 5770 at all is the 128-bit memory interface which gives it slower memory bandwidth but the fact that the 5770 scales so well in crossfire makes it a good card to have for now and then when prices drop you can get an insane performance boost from getting a second.
A forum community dedicated to overclocking enthusiasts and testing the limits of computing. Come join the discussion about computing, builds, collections, displays, models, styles, scales, specifications, reviews, accessories, classifieds, and more!