this post was submitted on 09 Apr 2026
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Hypothetically, to build a god-tier 270-360 degree screen coverage racing simulator with 4k 165ish hz refresh rate monitors, would a single RTX 5090, be enough to run 3 or 4 monitors? (lemmy.world)
submitted 5 days ago by 11111one11111@lemmy.world to c/askelectronics@discuss.tchncs.de
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Or would it need to have 1gpu for every 2 screens, meaning a 2gpu setup? Subsequently, would I also need to be running them on like a threadripper motherboard to avoid pcie down scaling each gpu to x8 each instead of x16?

All hypothetical so i apologive for not being able to provide actual specs. Im helping someone setup a mid-tier racing sim with 1 monitor so providing the actual specs Im using would be obsolete. We were just speculating what it would take to build a god-tier racing sim.

Also, I apologize if this isnt the correct community for this post. I didnt find anything when I tried searching different iterations of 'AskTechSupport.'

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[โ€“] MangoPenguin@lemmy.blahaj.zone 8 points 5 days ago (1 children)

I would look at benchmarks for the game you want to run that are done at 4k. Then divide the FPS by 2 for dual monitors or 4 for 4x monitors. Probably minus a bit more because scaling up isn't perfect.

However that's assuming you don't run out of vram, if that happens performance will drop a lot. Same with CPU, if the threads the game runs on are maxed out performance will drop.

[โ€“] 11111one11111@lemmy.world 3 points 5 days ago

This is outside of the context of the ppst but to me, especially with a game like gran turismo 4 that looked beatiful on a ps2, idk why anyone needs 4k. The only time I notice a difference and can even appreciate it, is for live sports broadcasts like nfl and nhl in live action. Moreso with hockey than football in the ability to see pucks ripping around the ice. Good shit tho thanks for the info.