GTX 16-series and RTX 20-series get a ReBar upgrade thanks to some BIOS modifications.
PCIe Resizable BAR (Base Address Memory) lets the video memory on your graphics card communicate with your processor more efficiently, potentially icreasing gaming performance, but it’s a relatively recent development. Nvidia cards only started supporting ReBAR with the GeForce RTX 30 series. A new mod has enabled slightly older cards, those in the RTX 20 and GTX 16 series, to get access to this performance boost.
The “NvStrapsReBar” tool on GitHub is a modification to recent UEFI/BIOS systems (the stuff that shows up on your boot screen before Windows), allowing ReBAR to run on these slightly outdated cards. It’s based on another popular mod, ReBarUEFI, bringing support for ReBar to processors as far back as 2011.
