Benchmarks: The Last Remnant, Unreal Tournament 3
The Radeon HD 5770 is at a definite disadvantage here when compared to the Radeon HD 4870 and GeForce GTX 260 graphics cards at 1680x1050. As the resolution scales up, however, this becomes less of an issue for AMD's latest card.
Looking at the graph above, the Radeon HD 5770 is just 4fps slower than the Radeon HD 4870 and 9fps slower than the GeForce GTX 260 when we hit 2560x1600. With an average of 40fps at this extreme resolution, the Radeon HD 5770 was 49% faster than the old Radeon HD 4770.
At 2560x1600 in Unreal Tournament 3 the Radeon HD 5770 averaged 43fps, making it just 7% slower than the GeForce GTX 260, while it was 5% faster than the Radeon HD 4870.
When compared to the old Radeon HD 4770, the 5770 was a whopping 72% faster. This huge margin was more likely due to the memory capacity advantage of the newer card as the Radeon HD 5770 was just 33% faster at 1920x1200.