請問 我這樣的配備 我想升級顯卡 跟記憶體.....

目前記憶體 是 4G 一條 然後 目前顯卡是GTS450 我想換更高階的顯卡 我想知道 這主板 能支援顯卡到什麼等級 資料如下: Machine name: USER-PC Operating System: Windows 7 旗艦版 64-bit (6.1, Build 7600) (7600.win7_rtm.090713-1255) Language: Chinese (Traditional) (Regional Setting: Chinese (Traditional)) System Manufacturer: MSI System Model: MS-7597 BIOS: Default System BIOS Processor: AMD Athlon(tm) II X4 640 Processor (4 CPUs), ~3.0GHz Memory: 4096MB RAM Available OS Memory: 4096MB RAM Page File: 2072MB used, 6115MB available Windows Dir: C:Windows DirectX Version: DirectX 11 DX Setup Parameters: Not found User DPI Setting: Using System DPI System DPI Setting: 96 DPI (100 percent) DWM DPI Scaling: Disabled DxDiag Version: 6.01.7600.16385 64bit Unicode[em=34][em=34][em=34][em=34][em=34][em=34][em=34][em=34][em=34][em=34][em=34][em=34][em=34]