I replaced my 1660 Ti with a 3070 this summer. I was definitely seeing the temperature difference in my room while running a game.
I spent some time undervolting, but not enough to get any satisfying results yet (tho the undervolting resulted in getting higher performance at a lower voltage, with the final result being same power usage). Next summer, I might end up defining another profile that would cap the clock at a lower frequency in addition to the undervolt, to use during the hottest summer days.