One of the changes with RTX Ampere is the idea of a resizable bar. The idea is to make all of the video card memory available to the CPU at once.

Resizable BAR is an optional PCI Express interface technology. As you move through a world in a game, GPU memory (VRAM) constantly transfers textures, shaders and geometry via many small CPU to GPU transfers.

With the ever-growing size of modern game assets, this results in a lot of transfers. Using Resizable BAR, assets can instead be requested as-needed and sent in full, so the CPU can efficiently access the entire frame buffer. And if multiple requests are made, transfers can occur concurrently, rather than queuing.

GeForce RTX 30 Series laptops with both Intel and AMD CPUs will support Resizable BAR starting with their release in the coming weeks. Check with each laptop manufacturer about support on particular models.

For desktop systems to get the benefits of Resizable BAR, you will need a graphics card, motherboard and graphics driver that support the feature. New GeForce RTX graphics cards starting with the GeForce RTX 3060 will have support for Resizable BAR. NVIDIA and our GPU partners are also readying VBIOS updates for existing GeForce RTX 30 Series graphics cards starting in March.

Additionally, NVIDIA has been working closely with Intel, AMD and major motherboard manufacturers, including ASUS, ASRock, EVGA, GIGABYTE, and MSI, to bring Resizable BAR support to a wide range of motherboards.

The MSI X570-A PRO HC2 beta BIOS added AGESA and Resize Bar support. This will push memory requirements a bit as the PC moves from 8GB to 16GB. Now moving to 32GB seems like a prudent idea.

The MSI X470 Gaming Plus also now has support for the Resize Bar which adds to the utility of the machine looking forward. The revised MSI X470 Gaming Plus Max has a larger 32MB BIOS but a replacement X570 platform has some advantages. The existing motherboard still has much service life remaining.

Migrating to DDR5 is going to be the time when hardware upgrades will be considered. Existing motherboards are far from useless. DDR5 like earlier changes are usually double the cost in the first 12-18 months. The only advantage to a gamer down the road is 64GB and eventually 128GB sticks. 4x32GB is already 128GB which is excessive as it stands so moving to 256GB or 512GB is all the more excessive.


NVIDIA also said the RTX 3060 will be available in late February with a MSRP of $329 which is a lot more affordable then the RTX 3090 of .

RTX 3060 TiRTX 3060
CUDA cores48643584
Boost Clock1.67 MHz1.78 MHz
Memory TypeGDDR6GDDR6

Comments are closed.

Create a website or blog at WordPress.com

Up ↑

Create your website at WordPress.com
Get started
%d bloggers like this: