![]() ![]() But if your framerate is higher with an external monitor, your laptop is likely one of them. ![]() I don't have a definitive list of which laptops are set up this way. The external display hardware is hooked up directly to the Nvidia GPU, so you get a more "pure" (desktop-like) gaming experience when connected to an external monitor. If you select the Intel GPU, the game renders on the Intel GPU which also displays the completed frame.Ī few gaming laptops are set up in this way only for the laptop display. If you select the Nvidia GPU, it does the above double buffering thing so the Intel GPU can display the completed frame. This is why you can select in software whether a game will use the Intel or Nvidia GPU. ![]() It's basically like vsync is always on, with the two GPUs acting as the two vsync framebuffers. The completed frame is then sent to the Intel GPU, which displays it. The game renders a frame on the Nvidia GPU. Laptops with combo Intel + Nvidia GPUs (Optimus) are set up so the Intel GPU always drives the screen. ![]()
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