CPU load doesn't change with resolution. If a CPU will let you get 60fps at 1024x768, it will also let you get 60fps at 2560x1440. Conversely, if you can't get 60fps on one CPU but another CPU can, it won't matter how much graphical power you throw at it because you're CPU limited.
That bench shows the FX-4100 as capable of delivering 60fps minimum in that game (regardless of video card or graphical settings), which is useful information.