nVidia GTX670 Review
3D Mark Vantage
The two big comparisons are against the GTX680 and, in target audience terms, the HD7950. The GTX670 provides a great start, handily beating the AMD offering and running the GTX680 surprisingly close, especially in the Extreme preset.
3D Mark 11
With the overclock the GTX670 really runs close to the stock GTX680, at only 75% of the price. Again in 3D Mark the AMD HD7950 is left a little behind, but it's all quite tight.