ASUS EAH4890/HTDI/1GD5 Radeon HD 4890 1GB 256-bit GDDR5
http://www.newegg.com/Product/Product.aspx?Item=N82E16814121308
Total = $1,132.91
You could get a 5750 for lesshttp://www.newegg.com/Product/Product.aspx?Item=N82E16814150448&cm_re=5750-_-14-150-448-_-Product and it's a DX11 Card.
Which is better for a gaming computer AMD Phenom II or Intel Core i7?
You could get a 5750 for lesshttp://www.newegg.com/Product/Product.aspx?Item=N82E16814150448&cm_re=5750-_-14-150-448-_-Product and it's a DX11 Card.
the 5770 will be adequate as it performs the same as a 4870. however if you want better than that then get a 5850.