Surface Book 3 was designed to be a portable powerhouse. It's capable of rendering high fidelity, 3D objects in CAD to rendering true 4K video in Premier Pro. That kind of power has a meaningful impact on gaming scenarios – something critical to a significant number of Surface Book 3 users. The graphics power is delivered by a dedicated NVIDIA GeForce GTX 1660Ti with 6GB of GDDR6 VRAM in the Surface Book 3 15” providing enough power to play the top Xbox Game Pass for PC games at 1080p in a smooth 60fps. For Implemented Game Mode, we partnered with Xbox and Windows to signal when gaming to automatically tune the performance for gaming. Windows quiets background tasks like Indexer and AV. Surface optimizes thermals and power to tune for gaming performance.