We're rendering in Octane as well on a large array of GTX 1080 Tis
So the GPUs are also liquid cooled.
We hit these things hard all day, every day.
We'll take any advantage to keep the systems running.
Lots of hot air being blown out of the exhaust ports of these boxes, it's nuts.
Not as crazy as a real render array and a room full of Isolons. That's just bananas when you go into those rooms. You need to wear ear protection.
If you're a hobbyist, buy the AMD, keep it cool, and save some much needed dough.
If you freelance, whatever, and have real deadlines where money at reputation are at stake, have a real VFX machine built so you can sleep at night.