We won't be using it as a benchmark
At 2560x1600, the GeForce GTX 550 Ti is quite playable, even though it dips slightly below 30 FPS. Every other graphics card option on the chart delivers great game play with minimum frame rates over 35 FPS. . . .
Frame rates stay high, despite a small difference between two and four threads. With a Phenom II X2 able to pump out 76 FPS(minimum), Diablo III players have little to worry about when it comes to owning a fast-enough processor.
and if you have a Radeon
we learned from a blue post on Battle.net that AMD's Catalyst 12.4 driver won't be supported in Diablo III. According to a follow-up response at PC Perspective from AMD representative Robert Hallock, some of the older Radeon models (specifically the HD 2400, 2600, 2900, 3400, 3600, and 4500) may suffer visual artifacts when this version is installed. The issue doesn't affect Radeon HD 5000, 6000, and 7000 users though, which explains why none of our benchmarks were affected. If you have an older Radeon card, you're advised to revert back to Catalyst 12.3 for Diablo III until a fix is available.