Graphics card running loud while playing games

I have a Gigabyte Geforce GTX 650 ti BOOST Graphics card. Whenever i play games like: Skyrim, Watchdogs, Metro Last Light, etc. etc. (aka high performance games). The fan starts getting really loud. Also happens a little bit when playing league of legends. I dont know why, I've read about something called Nvidia NTune, but it was last updated in 2007 and looks a little risky. If anyone could give me advice on what to do that would be great!

 

Info:

-Using stock coolers/fans

-No dust build up.

-Case is NZXT Source 210 Elite

-is the gpu. Spins up when playing games listed above, then goes down. 

Please Help, and thank you

A friend of man had a similar problem with an older GPU. Basically the fan bearings were gone. He lived with it for a while and then got rid of the thing and bought a new card.