Will A blower even be enough to cool the 2080ti? How did the 1080tis founder edition hold up with temps and throttling?
I have two founder's edition 1080s and they're stacked right on top of each other. The air gets vented out through the back of the case and warms my room up, which is great on cold winter days.
As long as I watch my fans I can keep the cards under 80 Celsius easily, even with the most demanding games. Yes, you'll throttle the card if you don't manually control your fans before launching a demanding game. And if fans annoy you, then heat becomes a problem.
I've never had my system shut off because of a heat issue, and I'm running at 3440x1440. Many times I've looked up at my OSD and seen that both 1080s were running above 95%, and the temps on both cards were below 80 centigrade. That's with a pretty aggressive fan setting though.