Nvidia launches Resizable BAR support today, a feature of PCI Express that can increase the frame rate in certain games by up to 10 percent. Resizable BAR works by unlocking access to the full graphics frame buffer, instead of limiting it to 256 MB of blocking. This can improve frame rates in games, but it will require a compatible CPU, motherboard BIOS update, and even a VBIOS update for all 30-series desktop GPUs.
Nvidia has worked with both AMD and Intel to provide chipset support. AMD’s Zen 3 processors are supported, along with Intel’s 10th generation processors and the company’s new 1
Resizable BAR works the same as AMD’s Smart Access Memory, which also promises to improve the frame rate in certain games by up to 10 percent. The frame rate increase using both will really depend on the game, and the resolution will also affect how much performance will be improved.
The new RTX 3060 graphics card was the first to include Resizable BAR last month, and wccftech found that it improved performance between 4 and 11 percent in certain games. Nvidia initially limited support to fewer than ten games, as the company warned that activating it on all games could lead to a reduction in performance in some.
Nvidia is now testing titles and using special game profiles to enable Resizable BAR only where performance increases. This means that only 17 games are currently supported, including Cyberpunk 2077, Assassin’s Creed Valhalla, and Watch Dogs Legion. More games will be added in future driver updates.
Resizable BAR support on the AMD side has been thoroughly tested, and TechSpot found that some games that use Smart Access Memory could see almost 20 percent boost at 1440p and 4K.