A couple years ago I swore off Nvidia on principle. For periods things would seem fine but updates would randomly break games and other things. Sold that card and got an amd haven't seen that issue since.

I just did a new build with AMD 9800X3D and RTX 5080. I’ve been dual booting Win 11 and Nobara. I haven’t done direct head to head benchmarks but Deep Rock Galactic, Deep Rock Survivor, Satisfactory, Skyrim, Atomic Heart all have run fine on Nobara.

The big difference I’ve noticed is Cyberpunk 2077. For whatever reason the AI frame generation tool doesn’t seem to work on Nobara so max FPS is around 65-70 with max raytracing/graphics settings. On Windows I got around 75+ and with the AI frame generation it goes up to 180 (I realize this is not a feature that some people like, please just realize I’m reporting my testing results).

Now all of that said, there is this weird jitteriness along the edges of objects with rapid camera movement in Cyberpunk on Windows, even at 180 fps, that isn’t there on Nobara. So even though the objective frame rate is much lower on Nobara, it actually feels much smoother and nicer.

¯\(ツ)/¯

I'm using endeavourOS with Nvidia 4090 with proprietary drivers and it works fine for most games without tinkering. For issues with Linux gaming you can check protonDB. Steam, lutris and heroic game launchers are doing wonders for a big portion of the gaming options on Linux. I wouldn't change the 3080 with AMD if I were you.

AMD is ideal but Nvidia is fine. Basically any game that would work on AMD will work on Nvidia (~~only exception I know of is the VR mode of Phasmophobia~~ edit: apparently this was fixed ~1yr ago). Gamepass still won't work though - blame Microsoft for that one.

That said, Nvidia has more of a performance hit when switching. Ancient Gameplays recently did a video comparing Nobara vs Windows 11, with both the RX 7900XTX and the RTX 4080 Super. These were his average results across 20 games:

RX 7900XTX: 1080p +2%, 1440p +0%, 4k -2.2%

RTX 4080S: 1080p -13.8%, 1440p -13%, 4k -10.2%

So your games will work. They just might run 10%-15% slower until you can snag an AMD card. If you're interested in fully committing, looks like most used 3080s are going for ~$500 on ebay, so you could probably get an AMD card and get most of your money back.

Don't buy nvidia. Intel and AMD opensourced their drivers and, more importantly, care for their customer needs. And i am talking about gaming customers.

The only thing nvidia cares about is AI and lots of money.

They lie to their customers (fake frames, paperlaunch) und neglect the gaming needs in favor of AI.

And, after all, AMD does not use 12V high power connectors, just simple, non burning, dual 8 pins

It’s much better these days - at least it works fine on arch and fedora. I wouldn’t worry about nvidia on Linux. That said, I’d go AMD for another reason - $. There’s just no reason to spend the kind of money nvidia wants when you can get something just a tad slower for 1/4 the price. AMD makes cards that can drive a huge monitor at high fps.

Bottom line: whatever is fine.

I just stick to AMD, especially on Linux. The official AMD driver is open source on Linux, included in mainline kernel, and performance is better than their Windows diver now

I have an Nvidia RTX 3070 and it works fine in kubuntu.

One of the latest games I played where I used HDR and ray tracing was Ghostrunner. It worked fine but with some intermittent slow downs.

I also have an AMD processor and that works great. You get a lot more bang for your buck.

You'll be fine. Although if you ever change, go with an ATI Radeon card for graphics because it's better supported by Linux and will have less potential problems.

I'm on a 2080 on Mint and have been for the past year, haven't had any major issues so far.

I have been using a 1080TI for years on Linux. It works fine for the most part. If I am going to build a new system which I am planning to do. I would avoid it.

I've been doing almost all of my gaming on Linux for 2 years now, running a 5800X3D and an RTX 3080.

Why the "almost"? I love to fly flight simulators, mostly DCS World, in VR and am still using an HP Reverb G2 (Windows) headset.

Everything else works without issues on Linux for me. I've been sitting on Pop!_OS 22.04 but if I were to install today, I'd go for Linux Mint

Don't get a 50 series card. If you must upgrade I'd go for a second hand 40xx. But honestly with a 3080 you're perfectly fine for now if you're not married to ultra 4k 144hz.

I'm on a 3070 and it does fine for most games. That said I don't play a lot of AAA titles but the ones I do play fine at medium or high settings mostly.

Also I used to dual boot, but since about a year I moved to 100% Linux and have only had the occasional issue. Mint with Nvidia send l seems to work pretty well these days.

Try Linux Mint or CachyOS, most will work out of the box also Nvidia graphics cards.