Hello all, So, I finally bought the Gigabyte GTX 670 last week (the model is GIGABYTE GV-N670OC-2GD GeForce GTX 670 2GB 256-bit GDDR5 PCI Express 3.0 x16 HDCP Ready SLI Support Video Card) and it's amazing! I really love this card. I was wondering if I could use my old Asus GTX 460 along with the 670 in sli. It looks like it's actually possible technically. you connect the 2 like a normal sli and in the settings you use the 460 as dedicated for physx. I did some tests and ran "Heaven" benchmark and got the following results: GTX 670 only - min fps 17, max fps 60, score 905 GTX 670 with GTX 460 for physx - min fps 19, max fps 60, score 899 I'm not really sure how to analyze this outcome. looks like the minimum fps is better but the overall score is lower... When I ran "the secret world" to see the FPS, with the 670 only I got about 47 fps with ultra settings, and along with the 460 I got about 50 fps. So there was about 8% of increase when using both cards. what I wanted to ask is, do you think it's worth while to stay with this configuration for only 8%? (taking into consideration the electricity usage and heat in the case) Can someone explain to me the "Heaven" results? I'm not sure what it means.. Thanks for your help!