Nvidia has a policy to force obsolescence of older GPUs at driver level long before they need to be obsolete as hardware.
So do AMD. I can no longer use my laptop's AMD GPU with the proprietary Catalyst drivers because of the "xorg too new" scenario. Granted, it's not a great GPU to start with (4xxxHD I think), can't remember the exact specs of the laptop right now - it's an HP G-62, but there have been many differently spec'd machines under that badge. I wouldn't care much, but it's not actually dead yet, and I'd like to be able to make use of the chip's full capabilities, but no dice. THe open-source AMD driver (MESA, is it?) can't do anything, performance wise. It struggles to run RenPy-based games, let alone anything that really *needs* hardware acceleration.
As a result they are sitting in the spare parts drawer and all desktop GPUs have now been replaced by AMD.
Newer AMD parts, I hope. which they (hopefully) won't obsolete for a few years. Once I get the desktop that this laptop is replacing back in action again, I may well install Xubuntu on it and donate it to charity, or just leave it lying in the hallway of my apartment building.