Those who were able to buy one of the new Nvidia RTX 3060 graphics cards yesterday now have access to the company long-expected Resizable BAR support, which is the PC user function can be enabled at the BIOS level to allow the CPU and GPU to speak directly. That’s a great thing, because that’s instantly helps increase game frame rates.
Support for this feature was implemented yesterday with the latest Nvidia driver update, but it only affects the RTX 3060 at this moment. Nvidia said Resizable BAR support for the rest of the 30 Series crew will continue in late March.
However, how AMD Smart Access Memory (SAM), which is just another resizable BAR way of saying, compatibility is limited to specific CPU and motherboards. No everyone with a RTX 3060 will you can still enable the feature.
At the moment, Nvidia’s Resizable BAR is only compatible with AMD 500 series chipsets and 400 series chipsets on AMD Zen 3 Ryzen 5000 series compatible motherboards. In addition, you must have an AMD processor. Ryzen 5000 series to use Resizable BAR with an Nvidia graphics card. At the moment, it is not compatible with older AMD processors.
As for Intel, compatibility includes 400 series chipsets, as well as all 11th generation chipsets available as of February 25th.. However, because Nvidia has been working closely with Intel to achieve this in operation, it seems likely that Resizable BAR will be ready when Intel launches its 11th-generation desktop CPUs and next-generation chipset; Nvidia lists the 11th generation Core i9, i7 and i5 as compatible, as well as the 10th generation Core i9, i7, i5 and i3 CPUs.
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Resizable BAR will also be compatible with motherboards from all major manufacturerss, including Asus, ASRock, Colorful, EVGA, Gigabyte and MSI. Nvidia did not say which ones specifically, but each manufacturer would have more information on their websites. Given that the 400 series chipsets are compatible, all 400 series motherboards should also be compatible (Z490, H470, B460 and H410), but each manufacturer could decide to enable it only on certain models. It is always better to check it again.
I wouldn’t hold your breath Resizable BAR to come to Intel 300 Series chipsets anytime soon. This chipset, which supports eighth and ninth generation CPUs, will reach its end of life in January 2022, therefore, it is likely that Intel will not focus on compatibility for this generation.
The 30 RTX Series gaming laptops also support resizable bars with Intel and AMD processors. Again, you will need to check with the laptop manufacturer to see if it is compatible with a particular model. He MSI GP66 Leopard, for example, admits it.
But even if your PC ticks all these boxes, you won’t see an increase in frame rate in all games, as is the case with AMD’s SAM. At this time, there are only a handful of games that support Resizable BAR with an Nvidia GPU, which include Assassin’s Creed Valhalla, Border lands 3, Metro Exodus, i several others.
As always, be sure to update your drivers, BIOS, and VBIOS to make this new feature really work on your compatible PC.