Left 4 Dead 2 (DirectX 9)

So the opening level towards the end features you fighting you way through the zombie horde in a burning hotel. It's one of the most graphically intense parts of the game but the HIS HD 5750 IceQ+ 1GB did pretty well. The fact you are slow moving through the level helps and it's highly playable. We used maximum graphics settings at 4xMSAA and 8xAF, so you could knock the detail level to medium and increase FPS with this card that way.

Enemy Territory: Quake Wars (OpenGL)

At 4xMSAA, the HIS HD 5750 IceQ+ 1GB does well in this test too. There were a few more drops than I expected but nothing overly dramatic, and there are plenty of options you could lower to ensure a solid frame rate.

Batman Arkham Asylum (DirectX 9)

Without Anti-Aliasing, both cards put in high numbers, but with this game at least, even a little MSAA can bring your frame rates right down. Still, the game looks pretty good, and is often dark in most places so MSAA isn't missed overly much compared to a drop below 60 in the frame rate.