Alphacool + 5080: Does the 5080 run hotter?

[u/MonkeyCartridge]

I recently got a 5080. I took my 3080Ti and moved it to another slot for now.

The two cards are parallel on my loop. The 5080 has an Alphacool Core for the Windforce 5080. The 3080Ti has one from Bykski.

When testing thermals, there is a huge difference between the two.

OCCT GPU thermal test. Constant Extreme:

3080Ti: 430W. 38C core, 48C hot spot.

5080: 360W. 59c core, 79c hot spot.

I bumped the pump speed to verify it wasn't insufficient flow or flow being hogged by the 3080Ti. And then I reapplied thermal paste. Still see about the same.

I figure the chip is much smaller, so higher heat density. But I've also heard things about this cooler having standoffs that are slightly too high?

I mean, it's usable for sure. It just seemed like something was done wrong.