A user on China’s Chiphell forum has shared benchmarks that show what kind of performance gains NVIDIA GeForce RTX 3090 owners might be able to expect with Resizable BAR support enabled in popular games such as Assassin’s Creed Valhalla, Battlefield V, and Red Dead Redemption 2. There appears to be an average performance improvement of around 3 percent in the 4K resolution, which, while not earth-shattering, constitutes a welcome gain for users seeking to maximize the potential of green team’s most powerful Ampere-based gaming GPU. NVIDIA is expected to release BIOS updates for enabling Resizable BAR on its GeForce RTX 30 Series Founders Edition graphics cards by the end of March.
All tests were performed at 4K resolution and maximum settings. According to those numbers, NVIDIA RTX 3090 with Resizable BAR is 3.17% faster on average, which is actually not such a bad result. NVIDIA RTX 3060 has seen bigger gains but at 1080p resolution. The QHD and 4K were expected to be under 5%. Of course, more detailed and comprehensive reviewers will be published. Reviewers may need to decide whether to continue testing RTX 30 cards without ReBAR support or enabled this feature where possible.
Sources: Chiphell, VideoCardz