Everyone seems to be chasing this for some grand old awesomeness.... but the actual specifics of how many things have to be updated in order for it to all work is beyond laughable.
 
I wish it would all get worked out & be great sooner than later , but I'm not counting on it.
 
A) cpu has to be the right ones....
B) the motherboard chipset then needs to be BIOS'd properly with it...
C) the videocard needs a new Vbios allowing it to operate/ function...
D) & the videocard driver also needs to have it put in ...
....and then if all that happens , the game has to support it also .
 
 
Here is the list of games so far ;
 
GeForce RTX 30 Series Resizable BAR Supported Games
As of February 25th, 2021
Assassin's Creed Valhalla
Battlefield V
Borderlands 3
Forza Horizon 4
Gears 5
Metro Exodus
Red Dead Redemption 2
Watch Dogs: Legion
 
.and here is my favorite quote right from Nvidia -
 
..
Much like AMD’s Smart Access Memory, Resizable BAR on Nvidia GPUs can boost frame rates in certain games by up to 10 percent. The boost is really game dependent, and resolution can also impact how much performance will increase. “In our testing, we’ve found some titles benefit from a few percent, up to 10 percent,” says Nvidia. “However, there are also titles that see a decrease in performance