That is a diffcult question to answer and would require a temp probe in the lower section to give you an accurate answer.

Judging by the CPU and GPU temps i'm not too concerned as they seem fine to me. I guess the mesh in the sidepanel is enough to exit the hot air from the rad.

There's not too much difference in temps between the PA120.3 + PA120.2 and this 480 rad too, something i was a little bit worried about.

This single rad is much easier to maintain as i could not remove the dust build up in between the two rads in the old situation.

I also think that a quad rad looks better than a triple as the gap is nicely filled now.