我的戴尔笔记本电脑具有Nvidia GPU，但可以在Intel图形处理器上运行

您的笔记本电脑具有Nvidia Optimus技术（Dell帮助页面）：

NVIDIA Optimus技术（在3D面板上不可用）

NVIDIA®Optimus™技术可自动优化电池寿命，同时完全，无缝且透明地保持您期望的图形性能，无论您是看电影，上网还是玩游戏。

它是如何工作的？

• This intelligent graphics technology switches between discrete and integrated graphics processors automatically whenever it determines what kind of application is being used. If you are simply surfing the Web, the GPU switches to the integrated version, therefore helping to extend your battery life. It's that easy to experience long battery life and amazing visuals without having to manually change settings.

• Watch an HD movie, surf the Web or play games knowing you can get the long battery life you need and the performance you expect from NVIDIA Optimus technology.

基本上，你的系统没有使用Nvidia显卡，因为它并不需要到。如果您要开始观看高清电影或玩游戏，那么它将切换为使用Nvidia硬件，事实是您没有做任何需要Nvidia卡插入的事情，因此您的笔记本电脑可以节省电量通过关闭Nvidia卡并改用集成显卡。