This will do http://www.newegg.com/Product/Product.aspx?Item=N82E16817207013
^ This. Or if you wanting to go a little cheaper: http://www.newegg.com/Product/Product.aspx?Item=N82E16817171082
Has a single 12V rail with 38 Amps on it, should be plenty of power for that card. The XFX PSU will give you a little more room for upgrades with 44 Amps on the rail.
This will do http://www.newegg.com/Product/Product.aspx?Item=N82E16817207013
^ This. Or if you wanting to go a little cheaper: http://www.newegg.com/Product/Product.aspx?Item=N82E16817171082
Has a single 12V rail with 38 Amps on it, should be plenty of power for that card. The XFX PSU will give you a little more room for upgrades with 44 Amps on the rail.
You will need atleast 600 watts power supply unit for this card.
In 300 watts your graphics card will not work..... If it worked, then also your pc will Restart VERY often, as the whole PC is not able to get enough power.