At the moment this is my pc rig:
CPU: Intel(R) Core(TM) i5-4690K CPU @ 3.50GHz, 3501 Mhz, 4 core
GPU: Sapphire Dual-X R9 285 2GB GDDR5 (UEFI) AMD Radeon R9 285 2GB
RAM: 8GB
I've got an 800W Power Supply.
I was thinking of getting an new GPU (an AMD rx 480)
Links:
https://goo.gl/kphG0o
https://goo.gl/2ngW3s
The first thing i wanted to know is, what's the difference between the two models? what should i get? Is the upgrade from my OLD GPU worth it?
Then, will my CPU bottleneck the GPU? (Im thinking of buying another stick of 4GB of RAM!)
Sorry for any grammatical mistakes, and if i am missing anything please let me know!

The Nitro has higher core clock and dual fans (plus probably some other negligible things). I would go with the Nitro+ at the prices mentioned in the 2 links for the factory OC and fans (which should mean lower temps especially if overclocking).

It will be nice upgrade from your 285, and I doubt your CPU will hold you back.

The Nitro has higher core clock and dual fans (plus probably some other negligible things). I would go with the Nitro+ at the prices mentioned in the 2 links for the factory OC and fans (which should mean lower temps especially if overclocking).

It will be nice upgrade from your 285, and I doubt your CPU will hold you back.

Sorry for the late reply, i've read the reply as soon as you posted but forgot to anwser, i found this very helpful, i will buy the nitro+ ASAP.
But  iwas wondering, do oyu think it will last for 5+years of gaming?