For the context, I come from Unreal background where a lot of client work has been done in Unreal, Lumen. For 50 fps 4-6K resolution LED screens.

I am looking into switching part of the rendering pipeline to Karma XPU, but I expect I will not get as fast rendering speeds as with Unreal Engine.

Would this setup be good enough for production rendering in Karma XPU?

In total 3 computers with:

3x RTX 4090
2x RTX 5090
2x 9950x3D
1x 9980x Threadripper

Each computer equipped with 128 GB ram.

Thx for any advice.

My current system

AMD Ryzen 9 5950x (16 cores)
128GB of DDR4 @3200
Nvidia RTX 4070 TI Super (16GB VRAM)
I am looking into buying a RTX PRO 6000 Blackwell with 96GB of VRAM at the moment

Not a bad system, but the 16GB of VRAM is a bit short at time, but the 32GB of you RTX 5090 should help with simulations and render, and yes, render times will be much slower than with Unreal, by a magnitude, We are still waiting for Karma real-time, assuming that it is still in the works!