Gpu,Cpu or Ram?

Mitrix

Commendable
Mar 17, 2016
3
0
1,510
Hello,
My current specs of PC are the following :
http://imgur.com/a/15dqH

I want to buy from GPU,CPU,RAM the things that I need to play Gta 5 at low or medium settings,
I was thinking of these:
http://www.pcgarage.ro/placi-video/asus/radeon-r7-360-oc-2gb-ddr5-128-bit-v2/
http://www.pcgarage.ro/placi-video/gigabyte/geforce-gtx-750-ti-oc-windforce-2x-2gb-ddr5-128-bit-1/
2x : http://www.pcgarage.ro/memorii/corsair/value-4gb-ddr3-1333mhz-cl9/

What do you think ? Get All of these and an i3 ?
Thank you