CPUs you can use with a 850W PSU

Assuming you already have a ~200W GPU, here's a compiled list of possible CPUs you can use:

CPU TDP Quick Buy
Intel Xeon 6761P 350W
Intel Xeon 6781P 350W
Intel Xeon 6944P 350W
Intel Xeon 6736P 205W
AMD Ryzen 9 9950X3D 170W
Intel Core i7-14700K 125W
AMD Ryzen 7 9800X3D 120W
AMD Ryzen 7 5800X3D 105W
AMD Ryzen 5 7600X 105W
AMD Ryzen 5 7500F 65W

What CPUs can you use with a 850W power supply?

First of all we have to make an assumption regarding the rest of your PC, let's start by assuming you have a ~200W GPU. Also, we can assume that the rest of your PC components (MB, RAM, Fans, Storage, etc...) consume an additional 100W, and we'll have an additional 100W of margin. That leaves us with 365W for the CPU.

With 365W you can squeeze in CPUs such as Intel Xeon 6761P, Intel Xeon 6781P, Intel Xeon 6944P, Intel Xeon 6736P, AMD Ryzen 9 9950X3D.