How to choose the best video card?

What would be the best performing (gaming) video card thats compatible with Gigabyte motherboard GA-81945GZME-RH?



How do you choose whether a video card is compatible with your mobo? Does it just depend on the connection (AGP, PCI)?



Mobo: GA-81945GZME-RH

Processor: Pentium D (3.40ghz)

Memory: 2GB

Video slot: PCI Express|||http://www.gigabyte.com.tw/Products/Moth…

This seems to be your motherboard.

Motherboard has:

1 PCI Express x 16 slot (x4 bandwidth)

and

3 PCI slots



PCI Express is for your video card (AGP won't fit and PCI video cards are slow). ATI HD 4670 is pretty optimal for your computer, faster cards will be bottlenecked by x4 bandwidth.