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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 2 months 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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[-] Steve@communick.news 8 points 2 months ago* (last edited 2 months ago)

One card can absolutely run 4 monitors.
Will it get you the framerates you want? Hard to say. Depends on which game and what settings you'll use.

However using 2 cards to run a single game doesn't realy work anymore, since SLI has been dropped.

Also GPUs don't saturate PCIE 16x bandwidth anymore. Even a 5090 might only lose low single digit performance at 8x. If you could run 2 cards, that would easily be better with each at 8x, than one at 16x.

[-] 11111one11111@lemmy.world 2 points 2 months ago

No shit. I love hearing something ive stressed about is nearly a non-factor!

this post was submitted on 09 Apr 2026
8 points (90.0% liked)

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