WildCard999 :
Ok so yea either 560 or 570 (preferably) would be a good upgrade from that GPU.
http://gpu.userbenchmark.com/Compare/Nvidia-GTX-550-Ti-vs-AMD-RX-560/3161vs3926
How has that 550 ti been treating you? I sold my good system to pay for car parts and I've resorted to using some older parts including two EVGA 550 ti 2gb versions for now as I don't have the extra cash for a better GPU. I will be pairing those with a G5400 (placeholder for i5-9600K eventually)/8gb RAM for 1600x900 gaming. Then I'll probably upgrade the GPU's with a AMD Navi GPU hopefully.
Oh yeah its been a real trusty steed, I love my old card.. lol, its very noisy though. before I really became a PC gamer, somebody gave me an old Pentuim Dual Core PC with 3GB of ram only haha, which I then bought the 550ti for. it did me well, I could play the old edition of Skyrim at 60fps on med-high settings, I could play Dark Souls fully without any lag, a couple other games I was able to play at a decent frame rate were GTA IV, Operation Flashpoint Red River, Sims 3 (easily), metro 2033 and last light (not there redux versions). I learn't that most games up to maybe 2013 will do fine on a 550ti. its just the noise.. man!! this thing screams. lol ..like you with swear a space ship is taking off.