I would just like to point out, that you cannot have a "gaming" computer with an integrated graphics card. You need to get a seperate dedicated GPU (graphics card). I agree with sincreator, where we need to see a budget as well as your current computer design.
If you have a big budget you can get the amazing GTX 970 graphics card which would let you run anything as well as the intel i5 4690k processor. These are $500 together.
If you are on a minor budget you can get a AMD FX-8350 and a GTX 760. This is $400
If you have very little money to spend you can get a Radeon 270 GPU with a AMD FX-6300 processor. This is $250
You can see how your budget affects a lot of things. If you don't want to send your build in, the options below are good for all budget builds, with the prices listed too! Hope this helped and ask me for a follow up if you want

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