Which is the point I was making. One example I managed to find is:

https://www.techpowerup.com/301649/nvidia-geforce-rtx-4090-w...

They get 95% of performance in a game with 60% TDP. I'm not sure how this translates to datacenters, but I suspect You can get at least 75% of the perf from a datacenter GPU running at half power, so it makes sense to install them anyway, and run all your stuff at lower power, as you'd still get 1.5x the perf.