NVIDIA previously said that RTX 3090/3080/3070 Founders Edition models will receive Resizable BAR support by the end of March this year. However, as of this writing (March 28), there have been no comments from NVIDIA regarding support for Resizable BAR technology.
Resizable BAR gives the CPU direct access to the entire memory of the graphics card, which has a positive effect on gaming performance. Depending on the situation, the productivity gain can reach 5-11%.
However, it seems that some NVIDIA graphics card partners have already begun distributing the corresponding BIOS firmware for their own RTX 3000 models, which will enable ReBAR support.
The new software is only available for specific models of GALAX China and Gainward China – that is, not even for international versions of RTX 3000 graphics cards. Therefore, the stability of the rest of the devices cannot be guaranteed, and we strongly do not recommend using these tools for updating. Anyway, until the manufacturer of your model confirms that the files listed below will work with your card.
Please do not download or use these tools to update your firmware if you are unsure of what you are doing! UmTale Lab is not responsible for your graphics card if this software breaks your GeForce RTX and turns it into a brick.
Files with updates for RTX 3090, 3080, 3070, and 3060 Ti video cards:
- GALAX RTX 3090 BIOS with Resizable BAR (exe)
- GALAX RTX 3080 BIOS with Resizable BAR (exe)
- GALAX RTX 3070 BIOS with Resizable BAR (exe)
- GALAX RTX 3060 Ti BIOS with Resizable BAR (exe)
It is important to note that the downloads are not digitally signed by NVIDIA, so if you decide to update the BIOS of your video card, you do so at your own risk.
Sources: Reddit, @Sebasti66855537, and VideoCadZ