Ah! I found the name of the card just as you posted this (you can see the funny video that I found in my original post ). Thanks so much. Good to know that things might not be as bad anymore. That card came out what, four years ago?You’re thinking of the R9 290X. I don’t think they are as bad anymore, but it really depends on the power consumption. Keep in mind that a card running at 90C and using 150W will heat up your room less than a card running at 60C but using 300W. Also there are always aftermarket cards if you are concerned about a hot GPU, although they won’t help keep your room cool.
You also taught me something about GPU temp vs power consumption, and how both affect heat output. Thank you.
The build I was considering was a mini-ITX form factor and my concern was thermal throttling due to how compact everything will be in the case. I'll keep an eye on the benchmarks going forward, especially once we see the top-end Vega release as well as 3rd party designs.