My Single GTX 660 Ti on a dell XPS 8300...
Scored an impressive 2057 valley score. Everything was set to the max except I had it set for 4x MSAA due to the lower memory bus. The games I run my hardware with, I rarely go over 4x MSAA/TXAA, what have you. The overclock on the card was +80 core clock, memory clock +615mhz. Stable after several runs through various titles such as Arma 2, Battlefield 3, Black Ops II, Defiance, Borderlands 2. Granted if I ran it on 8x anti aliasing it would of took a noticeable hit, but I'm more than happy. Again, this is a single GTX 660 Ti, MSI Power Edition Twin Frozr IV. My CPU is an i7 2600, non overclocked. 3.4ghz->3.8ghz turbo when under heavy gaming load.
I'd say that's fairly well for a GTX 660 Ti.
I will upload pictures of the bench later tonight!