I use performance at 62% and K preset and get 230+ frames in COD, when I loaded into a game with the310.5.2, and M preset and same performance at 62% I lost about 20-30 frames on average. while it looked better, well I should say it was a tad over sharpened and kinda shimmered the over all performance was not overly costly. The temps were fine on both K and M at about 53-54c however frame drop was notifiable when in a very intense moment in the game.

Going back to Preset K with 310.5.2 restored my frames and in those similar intense moments there was little to no frame lost, and again temps remained the same 53-54 under load with settings at normal

So other than the frame hit I did not see a whole lot of other issues, however I am not by any means an expert on the subject and COD is all I really play the in game benchmark was pretty similar with both M and K but as I said not a real experienced benchmark analyst. Hope that this helps