Summary: I bought two of these as an upgrade from 2x9800gt's. The cards are real heavy weights. I have an Antec 900 case and these cards fill up the bottom section. For anyone with a similar case, I recommend you do some planning before-hand to make sure you aren't going to have hard drives or other cables in the way. Once I got the cards in, they preformed well in benchmarks.
Summary: I came from an ATI Radeon HD 4870. What I noticed that changed was that I can max out AA to 32x QSAA. What I didn't notice was EVERYTHING ELSE. The graphics quality are the same with a higher FPS when playing "maxed out"--but I get the same FPS, on my old card, by turning off Anti Aliasing. DirectX 11? Throw that crazy idea out the window. DX11 does not add anything significant.
Summary: This is my second asus gtx 480 from amazon running sli and I am very happy I love amazon but the only complant that I have is I really wish thay would use fedx for shipping here in Alaska it takes forever to get anything from UPS I have spent thousands of dollars building my gaming pc and amazon has been great only had to get motherboard replaced and thay were great and very fast.
Summary: Setup: The Asus GTX 480 went into an Antec 300 (3 case fans - 2*120mm on back, side and 1*140mm fan on top) containing an Asus m3n72-d motherboard, a quadcore AMD Phenom processor, 4GB of 1066MHz DDR2 and a Corsair 650 power supply. The card replaced a GTX280 and is powering a Samsung 2333SW monitor at 1920x1080 and the OS is Windows 7 Ultimate. Packaging: The Asus packaging looked professional and really solid.