EVGA GeForce GTX 275
Mirror’s Edge is a first person action-adventure that uses a free-running, parkour-styled approach to gameplay, with you as a "runner" that must use The City’s countless obstacles and architecture to climb, slide, and vault through to accomplish the storyline’s objectives. Based on the Unreal 3 engine, the artistic style relies heavily on realistic lighting and textures to create an immersive world that contrasts against the stark minimalism of the vast architecture of The City environs. Physics plays a huge role here, and additional effects can be enabled with PhysX, but it limited to Nvidia’s graphics cards. In order to make a fair comparison of framerates, PhysX has been disabled for our tests. FRAPS is used to record the framerates of a pre-determined time trial level.
Here we see that the GTX 275 runs rampant over the ATI cards as this title does appear to favour Nvidia cards overall. We do know that if PhysX were enabled, the results would be even more in favour of the Nvidia cards and the ATI cards would be slaughtered because the calculations cannot be offloaded from the CPU and the framerates would therefore take a nosedive. This is certainly a large advantage and selling point of Nvidia cards, so it will be interesting to see to what extent game developers latch onto this feature since few games currently support it. Overall though, apples-to-apples, the GTX 275 does very well here, and even at 1920 resolution with the eye candy cranked up it still maintains very good framerates.