默认选项时自动选择，是根据运行的程序，驱动程序自动判断运行独立显卡或集成显卡
今天digit-life.com针对nVIDIA和ATi目前推出的高端显示卡产品做出了详细的测试。测试使用了Leadtek WinFast A400 TDH、Leadtek WinFast A400 Ultra TDH、nVIDIA GeForceFX 5950Ultra、ATi Radeon X800 XT、ATi Radeon 9800XT显卡。测试平台如下： CPU: AMD Athlon 64 3200+ (L2=1024K); Mainboard: 使用VIA K8T800芯片组的ASUS K8V SE Deluxe; RAM: 1 GB DDR SDRAM PC3200; HDD: Seagate Barracuda 7200.7 80GB SATA. OS: Windows XP SP1; DirectX 9.0b; Monitors: ViewSonic P810 (21")和Mitsubishi Diamond Pro 2070sb (21"). Drivers: ATI CATALYST 4.6; NVIDIA ForceWare 61.34.垂直刷新同步关闭测试项目及设置：Return to Castle Wolfenstein (MultiPlayer) (id Software/Activision) — OpenGL, multitexturing, ixbt0703-demo, test settings all maximal, S3TC OFF, configurations can be dowloaded here. Unreal 2: The Awakening (Infogrames), DirectX 8.1, multitexturing, auxiliary Bench'emAll! 2.5beta benchmark. RightMark 3D (one of the game scenes) — DirectX 8.1, Dot3, cube texturing, shadow buffers, vertex and pixel shaders (1.1, 1.4). Test settings: pixel shaders 1.1, shadow buffers OFF. HALO: Combat Evolved (Microsoft) — Direct3D, Vertex/Pixel Shaders 1.1/2.0, Hardware T&L, maximal quality. Half-Life2 (Valve/Sierra) — DirectX 9.0, two different demos (ixbt07 and coast), anisotropic filtering enabled. Tom Clancy's Splinter Cell v.1.2b (UbiSoft) - Direct3D, Vertex/Pixel Shaders 1.1/2.0, Hardware T&L, maximal quality (Very High); demo 1_1_2_Tbilisi, AA not working. Call of Duty (MultiPlayer) (Infinity Ward/Activision) — OpenGL, multitexturing, ixbt0104demo, test settings all maximal, S3TC ON Tomb Raider: Angel of Darkness v.49 (Core Design/Eldos Software) - DirectX 9.0, Paris5_4 demo, test settings are here. Fac Cry v.1.1 (Crytek/UbiSoft), DirectX 9.0, multitexturing, demo01 (startup with the -DEVMODE option), test settings all Very High. Serious Sam: The Second Encounter v.1.05 (Croteam/GodGames) — OpenGL, ìóëüòèòåêñòóðèðîâàíèå, ixbt0703-demo, íàñòðîéêè òåñòèðîâàíèÿ: quality, S3TC OFF.Unreal Tournament 2003 v.2225 (Digital Extreme/Epic Games) — Direct3D, Vertex Shaders, Hardware T&L, Dot3, cube texturing, quality by default. Code Creatures Benchmark Pro (CodeCult) — game test that demonstrates the board working in DirectX 8.1, Shaders, HW T&L. Painkiller v.1.15 (People Can Fly/Dreamcatcher) — DirectX 9.0, multitexturing, test settings all maximal, built-in benchmark. 测试成绩如下：
更详细的测试你可以到这里察看。