RX 470 vs GTX 1050 Ti

Hello there, i wanted to upgrade my graphics card and i have some questions : can my PC run this 1050 ti fine ? (Zotac GeForce GTX 1050 Ti Low Profile 4GB GDDR5 ) what about Sapphire PULSE Radeon RX 570 4GB mini ? assuming that i've bought a better PSU (i only have 320w currently) (the...

Just got CenturyLink and already have horrible fluctuations from the 10 Mb/s I should get all the way down to 100 Kb/s.. Mostly under 2-5 Mb/s and 150+ ping along with websites not loading and connection issues.. In CMD with command tracert www.google.com I got this...