1920x1200 Performance
Performance: Radeon HD 7950
Value: Radeon HD 7870
For an average of at least 60fps or better when playing Metro 2033 at 1920x1200, the Radeon HD 7950 is your best choice with 68fps. That said, the HD 7870 offers a better value and delivers totally playable performance at 56fps. The GTX 670 also performed well, but because it costs more and performs slightly worse than the HD 7950, it's not the best option here.
Performance: GeForce GTX 670
Value: Radeon HD 7950 or 7870
The GTX 670 managed to outpace the HD 7950 and HD 7970 by 11fps and 2fps, making it an easy pick for the best overall pick. However, HD 7950 remains a viable value-minded solution with 56fps, as does the HD 7870, which was only 9fps below the 60fps threshold.
Performance: Radeon HD 7850
Value: Radeon HD 6870
Call of Duty: Modern Warfare 3 – as you likely know – isn't particularly demanding, making the GTX 670 and HD 7000 series overkill. At 1920x1200, the HD 6870 is more than capable of delivering a smooth experience at 71fps, as is the GTX 560 Ti at 73fps.
Performance: GeForce GTX 680
Value: GeForce GTX 670
Crysis 2 is extremely demanding with the high-resolution texture pack and the DX11 patch, so you'll want to hit it with all the force your wallet can muster, making the GTX 680 and 670 the best performance and value-oriented picks.
Performance: GeForce GTX 670
Value: GeForce GTX 670
Dragon Age II requires the GTX 680 if you intend to approach or exceed 60fps, though the cheaper GTX 670 is only a tad slower at 55fps and seems like the logical pick for both performance and value.