Summary: Was able to run the 3 monitors off of this one video card! I am running Windows 8.1 on a HP Pavilion desktop I purchased in December 2012. My Pavilion came with a built-in graphics card (which it will automatically be disabled once you insert a video card into the PCI x16 slot. The video card recommends a minimum 350W power supply, or a power supply that can handle a minimum of 20A on the 12V bus.
Summary: - The PCI-E connector is weak - The card keeps moving inside my case and if it's slightly out of the connector, the PC will either not boot or I experience performance issues. I am sick of having to open up my case just to re-insert the card every time I move my PC.
Pros: - It runs pretty cool thanks to the big fan.
Cons: - The price/performance is simply not good. You're better off buying a R7 250 for the 90$, which will greatly outperform this card (Yes, I know this card was released before the new AMD GPUs, but I am talking about now, not the past).
Summary: Purchased for my system with a Gigabyte Mother Board which died and also killed my old video card. My biggest single requirement was that I needed access for 2 monitors. This 2 GB video card pricing was the same as many 1 GB cards. This is a much better deal.
Summary: I upgraded from the gt 610 to this gt 640 and it blows it away! It may not be able to play games on high like some of the real expensive ones but its great for this price and runs smooth and cool! Dont listen to the people that say that it cannot run more than two monitors because im running 3, 1 vga monitor and 2 dvi-d monitors and windows 7 instatly recognized them the manufacturer says it can run four but I havent tried four. Great price and great card!!