Aliens vs. Predator
The standalone Aliens vs. Predator benchmark uses DX11 features such as hardware tessellation and advanced shadow sampling to draw and animate everyone's favourite xenomorph.
AvP shows that, using medium-quality settings, the DX11 benchmark is only smooth at a 720p resolution on the HD 6670. Tellingly, HD 5770 is over 50 per cent faster, which is significant when the frame-rates hover around 30fps.