Need a little bit of help with my PC

[GambinoGod]

So I've recently got myself a nice PC with following components :
http://imgur.com/E6HmOjo
The power supply is Inter-Tech SL-500G, 500W.
Got it for 350kn ~ 52 USD without the GPU, the GPU I've put in was my old one, never really used it much, it's an AMD Radeon HD 4550 1GB VRAM.
So what I've planned is to do the following:
Buy an AMD Phenom II X6 1100T
Buy an AMD R9 270x Toxic OC 2GB or an XFX R9 270X 2GB
Buy additional Seagate Barracuda SATA3 3.5" 2TB HDD
But, I've came across an AMD Athlon X4 860k and I wanted to ask you, community, is Phenom II X6 1100T better than AMD X4 860K?
Also, will the Phenom II X6 1100T and R9 270X OC 2GB / XFX R9 270X 2GB work with my current motherboard?
Is the Sapphire R9 270X Toxic OC 2GB better than MSI RX 460 2GB OC?
Will 500w be enough for Phenom, R9 and the rest of the build?
Can you recommend me a GPU for 80 dollars?
Are there any CPUs for AM3 socket that are better than Phenom II X6 1100T?
Thank you.

 

[MnMWizard]

Those are some old ass parts (relatively). It mainly depends on the games you play, but I'd probably say you get an 860k if you're on a budget. Also I'd get this for the GPU: https://pcpartpicker.com/product/PXkwrH/gigabyte-radeon-rx-460-2gb-windforce-oc-video-card-gv-rx460wf2oc-2gd

500W is enough for even some of the highest end GPUs.