Something strange is happening with Gigabyte GTX780

[MaxJTihomirov]

1st of all sorry my English.
So,
I have working 4790K + GTX780 + Gigabyte Z97 Gaming 5 + Yosemite 10.10.1
Web driver 343.02.01f01
Last CUDA

Then I start it i have about 60-80fps in cinebench (i tested several times)
After restart (press apple->restart) I have normal 100-113fps
Sometimes i have to restart it twice.


Anybody knows what is this connected with??

 

[MaxJTihomirov]

SOLVED.
Problem was connected with high default CPU voltage