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As the 500+ has an M.2 port, you might consider some eGPU fiddling, as shown here: https://www.youtube.com/watch?v=Dv3RRAx7G6E

Thanks for the breakdown. I tend to run Doom at 640x400 if possible so I'm glad that it'll run reasonably on the new Pi. Thanks again.

Pi's have been running GZDoom since the 2nd generation at least, maybe even in the 1st gen. (That's more than 10 years ago)

Frame rates are not exactly "fluid" per se, and a lot of it will depend on the native resolution of your desktop (pixel fill rate is a killer on mobile processors), but generally it does work. If you're planning slaughter maps or any "brutal" style mod though - forget it. The Pi's rather humble processor simply can't handle those.

Also you will need to use builds that are compiled for arm64 - technically amd64 builds can be emulated but they will be really slow.

With Windows 10 support ending (ish) soon and being a geek I've been thinking of going leftfield and buying a Raspberry Pi 500+:

https://www.raspberrypi.com/products/ra ... -500-plus/

My biggest doubt about it is whether I could run Doom, particularly GZDoom, on it. Any tech-savvy folks out there that could elucidate?

PS: I know I could just put Linux on the PC I already have but that feels a bit boring.