increase comparing to upgrading to SSD or upgrading memory.
http://www.zdnet.com/article/the-best-and-worse-pc-upgrades/
Currently I have an i5 4460 and want to upgrade my cpu.
The i7 4790k would be a cheaper option as I won't need to upgrade mobo and ram.
Is the i7 4790k still good and be able to run 4k games with my 970?
Or should I spend more and get a new mobo ram and a 6700k.
Many thanks.

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