Hello, my current rig is as follows:
Intel core i3 3220, 3.2ghz
Asus Gtx 750 ti 2gb gddr5 oc
8gb of ram @ 1333mhz
550 watts power supply
Currently I have enough funds for a i7 3770 that I found on sale, or a gtx 960, or a gtx 970 if I'd sell my 750ti to a friend. Which of them should I choose? Or should I just save and wait till Christmas? a breakdown on why will be really helpful too.
Also suggest your own parts if you want.
thanks in advance.
Intel core i3 3220, 3.2ghz
Asus Gtx 750 ti 2gb gddr5 oc
8gb of ram @ 1333mhz
550 watts power supply
Currently I have enough funds for a i7 3770 that I found on sale, or a gtx 960, or a gtx 970 if I'd sell my 750ti to a friend. Which of them should I choose? Or should I just save and wait till Christmas? a breakdown on why will be really helpful too.
Also suggest your own parts if you want.

thanks in advance.