I need help choosing which component to upgrade next

[JoeVonWilson]

Good day to you all, I was wondering whether or not you could help me in choosing which component from my current PC that I should upgrade first. It should be noteworthy that this was intended to be a Gaming PC, as the specs in my current rig were pretty good as of 2 years ago. In addition to this, my budget for this new component would be £225

PC Specs:

CPU: Intel I3 3220
GPU: Asus HD 7850
MoBo: Asus P8Z77-v
RAM: 8GB Corsair Vengeance ddr3 1600Mhz
HDD: 500GB Western Digital Caviar Blue
PSU: Corsair CX600

Thank you for taking the time to read this post and I appreciate all answers.

 

[madchemist83]

Gtx 970