what to upgrade??

[jaakko.putaja]

Newbie here. I seriously need an upgrade but i dont know a lot about computers so here are my specs. Computer used for gaming

Processor AMD FX(tm)-8300 Eight-Core Processor, 3300 Mhz, 4 Core(s)
RAM DDR3 8GB
Graphic card AMD Radeon R9 270 2GB

And i have 550W power source

 

[fredfinks]

CPU/mobo/RAM/GPU.

options are:
2nd hand system or part off ebay.
new intel or ryzen system.