Nvidia reveals Resizable BAR support for Geforce RTX 30 series products

Nvidia has confirmed that Resizable BAR support is coming to their RTX 30 series graphics cards, allowing Nvidia’s latest graphics cards to utilise the optional PCIe function to enable increased performance within many gaming applications. 

Resizable BAR support allows CPUs to access the entirety of a graphics card’s frame buffer, allowing more data transfers to happen concurrently and increase the performance of a variety of PC titles. AMD calls their implementation of this feature “Smart Access Memory”, and Nvidia’s fast implementation of Resizable BAR within their graphics cards should show you how impactful this feature can be. 

Nvidia plans to deliver Resizable BAR support to their drivers in February alongside their RTX 3060 graphics card. This feature will also be part of Nvidia’s RTX 30 series mobile GPUs and all future Geforce graphics cards. 

For existing RTX 30 series owners, enabling Resizable BAR isn’t just a driver update away. Users of existing RTX 30 series graphics cards will need to update the VBIOS of their graphics cards to enable support for this new feature. This feature will also require motherboards to support PCIe’s Resizable BAR function. 

Nvidia has confirmed that they have been working with Intel, AMD and motherboard manufacturers like ASUS, ASRock, EVGA, Gigabyte, and MSI to enable ReSizable BAR support across a wide range of motherboards. 

Get ready to be boosted!

Today we announced that PCIe Resizable BAR will be supported on:

? GeForce RTX 30 Series Laptops
? GeForce RTX 3060
? All future products
? Existing RTX 30 Series GPUs (via VBIOS upgrade made available to partners) pic.twitter.com/fXVyU9cz79

— NVIDIA GeForce UK (@NVIDIAGeForceUK) January 12, 2021

You can join the discussion on Nvidia’s Resizable BAR plans to RTX 30 series products on the OC3D Forums.