How to increase minimum VRAM on Steam Deck by adjusting UMA Frame Buffer Size
On Valve’s Steam Deck handheld, the minimum VRAM allocation automatically adjusts within its native Linux-based OS. However, if you prefer to make adjustments yourself, you can set a value ranging from 256MB up to 4GB (out of the 8GB available to its GPU), to optimize gaming performance when using Windows 11 and even enhance specific games in SteamOS. Here’s how to elevate the UMA Frame Buffer Size on your Steam Deck, allowing you to test various games across each operating system.