ReBarUEFI: Resizable BAR for almost any UEFI system
ReBarUEFI is an open‑source utility that adds Resizable BAR support to a wide range of UEFI‑based computers. By patching the firmware at boot, it enables the GPU to access the full system memory range, potentially improving performance in supported games and benchmarks. The project claims compatibility with most recent motherboards and provides step‑by‑step instructions for users.