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RTX 3060 is the first Nvidia graphics card to be BAR-sized



Illustration for the article titled RTX 3060 will be the first of Nvidia's new graphics cards to get a frame rate increase

Picture: Nvidia

Those who were able to buy one of Nvidia’s new ones RTX 3060 graphics card yesterday now has access to the company’s lunexpected Adjustable BAR support, which is the feature PC users can enable at the BIOS level to let the CPU and GPU talk directly to each other. This is a great deal, because it immediately helps increase the frame rate.

Support for this feature rolled out with Nvidia’s latest driver update yesterday, but only affects RTX 3060 at this time. In Nvidia Changeable BAR support for the rest of the 30-series crew will follow at the end of March.

However, as AMDs Smart Access Memory (SAM), which is just another way to say Resizable BAR, compatibility is limited to specific CPUs and motherboards. Not all with one RTX 3060 will be able to activate the feature yet.

Currently, Nvidia’s Resizable BAR is only compatible with AMD 500 Series chipsets and AMD 400 Series chipsets on motherboards with AMD Zen 3 Ryzen 5000 Series CPU support. In addition, you must have an AMD Ryzen 5000 series processor to use Resizable BAR with an Nvidia graphics card. It is currently not compatible with older AMD processors.

On the Intel side, compatibility includes 400-series chipsets, as well as all 11th-generation chipsets available from February 25th.. However, because Nvidia has worked closely with Intel to get this is underway, it seems likely that the Resizable BAR will be ready for use when Intel launches its 11th generation desktop CPUs and next chipset generation; Nvidia lists 11th generation Core i9, i7 and i5 as compatible, as well as Core i9, i7, i5 and i3 10th generation CPUs.

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 specifics, but each manufacturer wanted more information on their websites. Given that 400 series chipsets are compatible, all 400 series motherboards should also be compatible (Z490, H470, B460 and H410), but each manufacturer may decide to activate it only on certain models. Always best to double check!

I would not hold my breath Changeable BAR to come to 300 Series Intel Chipset anytime soon. The chipset, which supports 8th and 9th generation processors, reaches its useful life by January 2022, so it is likely that Intel will not focus on compatibility for that generation.

RTX 30 Series gaming laptops also support expandable bar with Intel and AMD processors. Again, you need to check with the laptop manufacturer to see if it is supported on a particular model. The MSI GP66 Leopard, for example, it does not support.

But even if your PC ticks all of these boxes, you will not see an increase in frame rate in each game, as is the case with AMD’s SAM. Right now, there are only a handful of games that support Resizable BAR with an Nvidia GPU, which includes Assassin’s Creed Valhalla, Borderlands 3, Metro Exodus, and several others.

As always, do not forget to update the drivers, BIOS and VBIOS so that this new feature will actually work on your supported PC.


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