I had a 3770k overclocked to 4.4 ghz and my grafic card is gtx 680 2gb.

The temps of my cores were 40-50 degrees.

 

Today I built in a 780 asus with 3gb mem.

same core temps were now 80 degrees.

 

Is there a logical explanation for?

 

k.r

i found the culprit it was the cooler wires not connected

As my high school auto shop teacher used to say, "There was a loose nut behind the wheel."