How does the CPU affect the performance of my computer on games?

Cameron6399

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Dec 2, 2015
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I have a Nvidia geforce gtx 750ti and an intel i5-4440. Also 8 GB RAM.
The reson im asking is that i want to play games, in this case, the division, on medium to high graphics and get more than 30FPS. in order to do this do i need to upgrade my CPU or GPU?
Thanks