if 3.3 means 3.3 GHz then your fine if you want a good graphics card upgrade grab a 750 Ti

Yea 3.3 GHz Thank you

Your CPU is fine.if you really want to upgrade your CPU go for an i7. Theyre more expensive but better than an i5

I agree with voltage if you just want to use this system for gaming. But if you want to have some more future upgrade ability options check out skylake or even enthusiast haswell-e. This is especially important with the up and coming relevance of m.2 and nvme bootable platforms. It all really depends on how much you want to spend. 

I just want Gaming for now.

So i got a GTX 960 4Gb and i got a Gigabyte LGA 1155 Intel B7 micro motherboard for it.This is my first time doing this i used Pc Part Picker to make the upgrades and iv been watching a lot of Linus on youtube and other PC build video.So any tips and help you guys can offer is appriciated i want to learn this stuff. Thanks