Will I be blottlenecked if i upgrade? Please Advise.

SCenci

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Mar 4, 2014
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I want to upgrade my current video card up to a Nvidia GTX 770 (and possible then SC/OC) Version of it

My current specs are:

CPU : 1045T Phenom II (x6) (Stock heatsink)
PSU: 750w bronze
GPU: Radeon HD 7770 Ghz Edition - (replacing this)
RAM: 8Gbs RAM (1333 MHz)
MB: (Can't remember the exact make and model but its a gigabyte micro ATX i believe)
Case: Mid-tower
HDD: 1 TB Barracuda

I haven't invested much more money in this computer since i built it around 1.7 years ago. I'll have some money to spend on a new video card soon, and although this card does what makes me happy most of time, having ultra graphics on 24/7 on games like ESO sounds nice.
My question revolves around what can i expect if i upgrade to a 770/770SC with these specs, will I be advised to upgrade my CPU as well because it will be slowing me down?

-Thank you in advance