Resumen: I have been using it for several months now with a dual monitor setup without any problems on Windows 7 and then Windows 8. I'm not a gamer, so I can't tell you about that aspect of performance.
Resumen: I bought this but returned it because my small mini PC could not fit a full size card. It did enhance my games a little, but ill be honest I only tried it with the sims 3 on high settings and okay performance with an dual core i3 clarkdale. I returned it only because I decided to just build my own PC.
Resumen: Built a new system and I like to match motherboard mfg with video card mfg. Asus motherboard M5A97 LE R2.0, Video Card ASUS EAH6570. Windows 7 (64 bit), 16 GB DDR3-1333 memory. Everything worked at first turn on.
Resumen: Better cards are on the market now. For a few more dollars you can get a better performance low profile card the Sapphire HD 7750 Low Profile is the fastest, low profile, single slot card is quieter, consumes less power, and performance blow the ASUS HD 6570 Low Profile out of the water. So save your money and go with the Sapphire HD 7750 low profile. You wont regret it.