On what 720p 1080p?

why not a gtx 750ti? or a gtx 770?

and no it will not even do 40 at 1080p at optimal settings

Please don't use that PSU.

Give this PSU a look (Go for 500W):

http://www.amazon.com/EVGA-80PLUS-Bronze-Certified-100-B1-0600-KR/dp/B00EON40CS/ref=sr_1_1?ie=UTF8&qid=1432706038&sr=8-1&keywords=600b

And this GPU:

http://www.amazon.com/EVGA-GeForce-Dual-Link-Graphics-02G-P4-2966-KR/dp/B00SC6HAS4/ref=sr_1_1?ie=UTF8&qid=1432706077&sr=8-1&keywords=gtx+760

This set of RAM:

http://www.amazon.com/Crucial-Ballistix-PC3-12800-BLS2KIT4G3D1609DS1S00-BLS2CP4G3D1609DS1S00/dp/B006WAGGUK/ref=sr_1_6?ie=UTF8&qid=1432706151&sr=8-6&keywords=ddr3+2x4

That would probably set you up for a much better gaming experience. Total would be around 758.33, which is only an extra $83 but the performance and stability increase would likely be well worth it. 

Everything in this build is good, except the graphics card, a GTX 750 cant run GTAV at 1080p 60FPS, You can go for a GTX 960 and get 50 to 60 FPS at high detail preset, and if can, i would reccomend you to upgrade that FX-6300 to an I5.

dont use the 750ti i have one in my cpu and it is holding me back reallly need a new on lol

Probably, yes.

I would however suggest an upgrade to an R9 270X or R9 280X, cause they is cheap right now. (particularly the 270X)

http://pcpartpicker.com/part/msi-video-card-r9270xhawk

http://pcpartpicker.com/part/msi-video-card-r9280xgaming3g