Nvidia has launched the GeForce 320.14 Beta Drivers that provide up to 10 percent better performance in Metro: Last Light and improvements of up to 20 percent for a range of other titles when compared to the GeForce 314.22 WHQL drivers.
Though results will vary, depending on your system's configuration, Nvidia has provided the following "measured gains" for a GTX 660 in both a solo and SLI configurations.
| Title | GTX 660 | GTX 660 SLI |
|---|---|---|
| Battlefield 3 | - | Up to 6% |
| Dirt: Showdown | Up to 20% | Up to 17% |
| Deus Ex: Human Revolutions | Up to 6% | Up to 6% |
| F1 2012 | Up to 5% | Up to 5% |
| Far Cry 3 | Up to 6% | Up to 6% |
| Metro 2033 | Up to 6% | - |
| StarCraft II | Up to 8% | Up to 7% |
| Tomb Raider | Up to 18% | Up to 18% |
Finally, the drivers included added or updated SLI profiles for a range of titles that include Alien Fear, Call of Juarez: Gunslinger, Dead Island: Riptide, Far Cry 3: Blood Dragon, Grid 2, Resident Evil 6 and The Walking Dead: Survival Instinct.
The GeForce 320.14 Beta Drivers are available for download from Nvidia's GeForce website for 32-bit and 64-bit versions of Windows Vista, 7 and 8.