Whether you're on the hunt for the best graphics card on the market or already have a recent GPU and have been tweaking your settings, you’ve likely come across a feature called Resizable BAR (Base Address Register), also known as Resize BAR or ReBAR (or for AMD cards, the equivalent Smart Memory Access, or SAM). Oftentimes, however, there’s not much explanation given in your system settings about what it is or does, prompting a lot of questions from readers like ‘What is Resizable BAR?’ and ‘Will Resizable BAR improve my gaming performance?’
Originally developed as a way to improve how CPUs access GPU memory, Resizable BAR can provide meaningful performance improvements in certain cases, typically boosting frame rates in games, reducing load times, and creating a smoother gaming experience overall.
