A performance difference?

[Joshua Fredricks]

Will I get better fps in game I enjoy to play? ASUS STRIX GeForce GTX 960 Overclocked 4 GB and Zotac 750 ti 2 gb (What I run Now,)

 

[xapoc]

Should get you 40% performance boost over 750ti.

 

[Gam3r01]

Thats about 45% faster, so yes that would be a substantial upgrade.
I would recommend an R9 380 for an additional 5-10% increase in performance.