I used to have two 680 cards in SLI mode but one finally failed which I suspect from overheating playing ED. The remaining 680 card is hitting up to 79-84C temp (fans manually set at 100 percent) when playing ED and 40-45C doing anything else including editing HD videos in Adobe products for commercial business the PC was designed for. Maybe time for a cooler running graphics card.
How are the temperatures on the cards you are using? That would be an interesting chart. For me ED high settings are fine.
GPU temperature is entirely dependent on how much power the card consumes and how good it's cooling is.
My overclocked 1080 Ti is a hotter running card than a single GTX 680, in terms of how much heat it actually produces (with frame rates uncapped ED can cause my card to use ~300w). However, since my particular model has a solid non-reference cooler, it also doesn't reach anywhere near the temperatures you see. Indeed, I have mine set to throttle at 68C, which happens to be the temperature it will reach in a warm room when drawing near it's maximum power limit.
Of course, newer GPU architectures also deliver more performance per watt.
Who knows maybe a 2019 laptop or a cheaper PC would blow me away.
It would, almost entirely because of the GPU.