AMD GPU drivers are fine at doing their job. There are some quirks that they are still working out, things like driver enforced V-Sync not behaving consistently across applications with some just ignoring it entirely. The control panel itself is clunky with nVidia's classic panel being easier to use though GeForce Experience was terrible. So yeah, it's mostly just cosmetic or interactivity issues, the core functionality of rendering triangles into frames works great.
People rarely talk about the real-world experience of various drivers, just nebulous statements. I will say I encounter oddities with AMD more than with Nvidia, but for the RDNA 4 launch things were mostly smooth. Why only mostly? I'll give you one concrete example.
I installed and tested the RX 9070 XT card. Everything went fine. When finished, I shut down the PC and installed the RX 9070 card. And... nothing. Oh, I saw the POST screen, but the Windows login screen never came up. But the PC was alive! I could ping it! So I tried remotely connecting. Nothing. I futzed around for possibly 30 minutes, wondering if I had a DOA 9070 sample.
So then I tried it in my old testbed, and had the exact same problem. Nothing. Sigh... more time wasted. But then I though, "You know, I had the 9070 XT in both systems. I wonder if the drivers are failing to load because they're looking for the 9070 XT and crapping out when they find the 9070?" So I put the 9070 into my even older 12900K testbed, and it booted right up to Windows. (No drivers installed yet.)
I then had to put the 9070 XT back into my testbed, boot into Windows, run Display Driver Uninstaller to wipe out the drivers, shutdown and put the 9070 in... and it worked.
I wish I could say this was a rare occurrence, but AMD GPUs don't really seem to like switching between graphics cards. Usually I'll get the PC to boot and the first launch it will BSOD and restart and then work. Other times, it will boot but act like no AMD drivers are installed, so I need to reinstall the drivers. On Nvidia, though, swapping between cards while using the same drivers almost never causes issues.
So why not just wipe the drivers every time I swap? I could, I probably should, but sometimes you don't want to wait an extra 10 minutes to wipe, shutdown, swap cards, boot, reinstall. Remember: MASSIVE time crunch for the past couple of weeks.
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Now, that's the AMD side. Nvidia's drivers with Blackwell are still problematic in a couple of games in my test suite. Minecraft at "ultra" (24 RT render chunks) doesn't work right on the 9800X3D system at 1080p, sort of 1440p and 4K. The slower the card (i.e. 5070) the less problematic it is. But the 5090? It runs terribly right now in Minecraft at 1080p — but not with 8 RT render chunks setting. This has been a known issue since early January now.
Warhammer 40K: Space Marine 2 also has some performance oddities. On both AMD and Nvidia Blackwell, performance is capped to around 150~170 FPS. Put in an RTX 40-series GPU and suddenly it will hit 200+ FPS. Again, Nvidia is aware of this but hasn't provided a fix in nearly two months. It did fix weaker than expected 1080p medium/ultra results for quite a few games compared to the launch 5090 drivers at least.
The black screens on Nvidia are another example of issues. I sent an MSI Suprim Liquid SOC back because I couldn't finish all the tests and MSI offered no explanation. Two days after I shipped it back, it released a VBIOS update to fix black screen issues and Nvidia put out new drivers. LOL. Why couldn't anyone just tell me, "Yes, we're aware of the problem and a fix is impending?" and save me almost a week of chasing my tail?
And how on earth did a bunch of GPUs with one missing ROPS cluster get shipped out? The "bad batch" explanation doesn't hold water, since it happened on 5090, 5080, and 5070 Ti cards IIRC. None of the cards I have exhibited this problem, but that's two completely different chips and three configurations, so it wasn't a single "batch."
The bottom line is that new architectures are usually far more problematic from a drivers standpoint. It's surprising how bad things can get, and AMD and Nvidia have been less kind to the AIBs lately in order to try to lessen the number of leaks. I'm pretty sure the entire 40-series was leaked weeks before it launched. The 5090 and 5080 had plenty of rumors but a LOT of wrong information that obviously wasn't leaked, just bad guesses.
/notes from testing new GPUs...