Originally Posted by Uberpwnage
Your resolution has 2.4% more pixels than 1920x1200 so you can go by 1920x1200 benchmarks to see what kind of performance to expect. Generally, a single 480 handles 1920x1200 just fine with the exception of maybe Metro 2033.
I get 40-50fps in Metro 2033 at 1920x1200, high settings on DX10. With 4xMSAA rather than AAA I get 30-40.
DX11 is a bear though.