Powercolors RX 550, the newest addition in the Polaris series of graphics processors from AMD is tested and spotted. This particluar model of the card is priced at 79.99 dollars.... PowerColor RX 550 surfaces
$25 is some 30% of this card's price. It would be strange if GTX 1050 wasn't a better card if you need to pay that much more.
Hilbert you noted the the card uses 100 watts but looking at the graph it shows that the system at idle was at 50 watts already so the card probably consumes around 60/70 which would make more sense considering it has only 512 shaders.