Below are benchmark results of the Radeon HD 7950 at 1920x1200 resolution. You might get 5% more performance at 1080p. The test rig uses an Intel Core i7-3770K @ 4.6 GHz so very CPU dependent games like Skryim, StarCraft 2 and Hitman:Absolution will be higher than what you would get with your CPU. For games that are not quite as CPU dependent the performance with your CPU should be closer.
Battlefield 3 (single player only) and BioShock Infinite are example of games that do not care how powerful your CPU is as long as it does not bottleneck the graphics card card so expect similar results.
Here's a link to the review starting on the test rig page:
http://www.techpowerup.com/reviews/Inno3D/iChill_GTX_650_Ti_Boost/5.html
As can be seen in the benchmarks below, the Radoen HD 7950 is a very capable card except for in game that have very high or excessively high hardware requirements. Crysis 3 is simply the most demanding game currently out similar to how Crysis was when it was first released, you will actually have to wait a couple of years to get hardware than will allow you to get high frame rates. Hitman: Aboslution is another very demanding game, but not at Crysis 3 level. Excluding very demanding games the Radeon HD 7950 performs very well. Less expensive cards like the Radeon HD 7870 and the GTX 650 Ti Boost also performs pretty well given their prices and depending on the game itself.
Most, but not all the benchmarks (hopefully all of them will be displayed: