Which component needs upgrading the most?

warsnail

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Dec 28, 2014
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So I've had my PC for a fair few years now and I've upgraded parts along the way but managed to get at least a year out of my current build with little to no issues. But I've recently been noticing it start to struggle, small tasks sometimes jitter and newer games I struggle to run, and never on the highest settings. I recently got PUBG and playing this is what made me want to post this, I can only get playable frames when on the lowest settings, and even putting them up slightly causes crashes, major glitches and an overall unplayable experience.

So I figured that somthing in my PC was out of date, I'm not sure whether its the CPU or GPU or something else that I haven't thought of.

Specs:
CPU - i5 4690k
GPU - R9 390
PSU - Corsair CX 750 w
Motherboard - MSI Z97 Gaming 5
RAM - 16gb (2*8gb) Corsair Vengance DDR3

I do also play on wiping my system, as that should help a fair bit