Apple-Specific AMD Radeon Pro W6800X Duo $5000 GPU Loses to Nvidia $1600 RTX4090 (wccftech.com)

Well, anything produced on the 7nm (W6800X) process loses to a top-tier produced on the 4nm (RTX 4090).

Using the Boot Camp drivers for Windows, anyway.

Yeah, but doesn't the AMD card have things like ECC memory? Doesn't really justify it being so expensive though.

The W6800X Duo was released in the Mac Pro update in December 2019 [1] and is long overdue for a refresh. If anything it's impressive a card from 2019 is still competitive with top tier cards released in late 2022.

[1] https://buyersguide.macrumors.com/#Mac_Pro

It'd be more fair to compare it to a similar quadro card than to a gamer card I'd think.