蓝宝7750 LP 刀卡强 还是 微星单槽刀版GT640 ?

goodluck08

Microsoft Windows 7 Home Premium Edition Service Pack 1 (build 7601), 64-

Intel(R) Core(TM) i3-2120 CPU @ 3.30GHz

12.00 GB

SAPPHIRE HD 7750 1GB GDDR5 LOW PROFILE

本机型号
HP Pavilion Slimline s5-1238hk Desktop PC Product Specifications
http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&dlc=en&tmp_geoLoc=true&docname=c03231373#N1199


主机板型号: Motherboard Specifications, H-CUPERTINO2-H61-uA TX (Cupertino2)

Power SupplyInternal 270W (100V-240V)Total wattage: 270WInput voltage:100-127V/3A (50-60Hz)200-240V/2A (50-60Hz)

----------------------------------------------------------------------------------------------------------------------------------------------------------近日用 蓝宝7750 LP 刀卡 玩刺客信条3 不能稳定60FPS
想换掉显卡, 但我的机箱和火牛限制我的选择
這顯卡怎樣?
GeForce GT 640 Mini