Agreed with getting a better PSU, plus once you've done so then you can get the RX 570 4gb for the same price as the 1050 ti but is much better.How about Zotac GTX 1050 ti OC Dual fan 4GB? In the forum it's say minimum power is 75w and may minimum power is 225w
what is the best psu?Replace your PSU ASAP. I'd look into a major brand PSU. Both the PSU you have right now and the one you just mentioned are completely unknown to me, I wouldn't trust them for the life of me. Then look into a new GPU like WildCard999 said. Watch out for the RX570 though. There's 4GB models and 8GB models, some 8GB models are cheaper than 4GB models. I don't know anything about AMD graphics cards, so I'm not the right person to ask about them, I just know those two are about the same price.