Muchachos, que es mejor para un Athlon 64:
GeForce 5700 Ultra 128Mb DDR 3
http://www.msimiami.com/spanish/products/detail_spec/FX5700U3_TD128_spa.htm
GeForce 5900xt 128 Mb DDR (DDR 1)
http://www.msimiami.com/spanish/products/detail_spec/FX5900XT-VTD128_spa.htm
GeForce 5700 Ultra 128Mb DDR 3
http://www.msimiami.com/spanish/products/detail_spec/FX5700U3_TD128_spa.htm
GeForce 5900xt 128 Mb DDR (DDR 1)
http://www.msimiami.com/spanish/products/detail_spec/FX5900XT-VTD128_spa.htm