SLI EGPU

IncredibleJ1 · July 3, 2020

Does anyone think it would be possible to create an SLI EGPU setup. A lot of laptops already have 2 thunderbolt 3 ports so could you dedicate 1 for each gpu and put them in SLI?

-Yes, I do know this is stupid in terms of cost and stuff but I just want to know if it is possible.

eeeee1 · July 3, 2020

this should be an ltt video

i think that it should be possible if there are no limitations with thunderbolt and if there are e-gpu chassis capable of holding more than one gpu

Electronics Wizardy · July 3, 2020

well you need a x8 slot of above, and tb3 is x4 only, and you need a sli certified board(I don't know of any sli certified thunderbolt laptops.

So basically no. Might be possible with crossfire though, its less picky, but performance is gonna not be great

The_Hambo · August 2, 2020

Doubt it. Intel is very iffy on sharing or setting any concrete specs on the platform.

If you tried to use two separate TB3 ports, think it just caps it down to basically 1/2 speed, since most devices will only have one TB3 controller, not to mention that even if it didn't have that, you'd be severely crippled by the bandwidth, even at it's ideal max. Cards like the 2080 are already too much, now imagine an inefficient dual-card setup.

I mean, it might be possible, assuming the limitations don't f*** you over, but you'd have to consider a hunk of junk "functional" at that point.