AMD's Radeon HD 6450: UVD3 Meets The HTPCby Ryan Smith on April 7, 2011 12:01 AM EST
Blizzard’s latest RTS is CPU-bound under most situations, but with low-end GPUs most scenes become GPU bound as long as there aren’t too many active units on the screen. With the 6450 we can easily manage Medium quality, but higher quality modes quickly swamp these low-end GPUs.
Even at 1280x1024 the 6450 gets 60fps in our GPU replay, showcasing just how forgiving StarCraft II is on GPU performance. Compared to the 5450 the 6450’s lead is once again quite large, but it’s actually slightly smaller than in other games, indicating that this simple to draw game is on the verge of becoming ROP-bound. As a result the 5570 and the NVIDIA lineup do very well for themselves here, with the 5570 doing almost 50% better while the GT 430 is 65% ahead. In practice the game is just GPU reliant enough at these settings that you need a low-end dGPU instead of an iGPU for smooth framerates.