PCI-Express Resizable BAR, pioneered by AMD, seems to be a magic bullet for unlocking additional double-digit FPS gains. NVIDIA finally released their implementation for GeForce Ampere cards. In our PCIe BAR review, we test the feature on RTX 3090, 3080, 3070, and 3060 Ti in 22 games, at Full HD, 1440p, and 4K.