Question PCIE4 SSD on PCIE3 slot controller temp

[Pextaxmx]

We all know that PCIE 4 drives running at PCIE 4 mode run hotter than PCIE3 drives in general.

My question is, would controllers on PCIE4 drives get less hot in PCIE3 mode? To the degree of PCIE 3 drives?

 

[ak47jar3d]

I would assume that pcie 4 drives would get out as hot as gen 3 drives if they were starved by bandwidth. Definitely needs to be tested....