Hi. I was wondering if anyone had tried an RTX 4090 with Cycles?
: )
Pft! It only takes 440 watts. Better only put 2 in, just in case. : )
It would be about 5.5 times faster than my GTX 1080 : )
Nope, but I think it should just work. Let me know when you have tried it 
LOL, energy must be free in the US. 
My Mac Studio Ultra uses 40 to 50W max while rendering in Blender Cycles and 20 to 25W when running Rhino, Firefox and a couple of other programs.
I guess you’d at least need a 1000W power supply with a card like this and huge case?