Another new game that we are introducing to our benchmarking suite is the zombie-infested first-person shooter Left 4 Dead. The game uses the latest version of Valve's Source engine, which is rather dated considering that it was first seen on Half-Life 2 and Counter-Strike: Source almost four years ago.
The Palit Revolution 700 Deluxe, with its 400MHz DDR memory overclock continues to disappoint by posting scores that were no different from a reference Radeon HD 4870 X2. Thankfully, the HIS Radeon HD 4870 IceQ 4+ Turbo did better, obtaining scores that were on average about 5% above a reference Radeon HD 4870. It managed its biggest jump on our highest setting, but that could be due to the fact that it has a frame buffer size that is twice as large.
By now, we were also seeing a trend with our NVIDIA card. The Zotac GeForce GTX 280 AMP! Edition continued its fine form by outperforming a reference GeForce GTX 280, by as much as 10% on the higher resolutions. The Leadtek WinFast GTX 260 Extreme+ did well too, but was not as impressive as the Zotac GTX 280 AMP! Edition.
Unreal Tournament was a benchmark used extensively when testing on our Windows XP system and we've decided to use it too for this shoot-out. On Vista, however, there is an option to utilize DirectX10, which we promptly enabled.