Some small differences but similar overall.
I tested MAC Ruby Woo against NYX Perfect Red and was very impressed with both the texture and staying power of both. Ruby Woo may be slightly darker, but not by much. Neither had a smell, both are matte cool-toned reds that are beautiful especially now for fall. I did not have a problem with bleeding around the mouth, both wore really well. I highly recommend both lipsticks however if you’re on a budget definitely go with the NYX! It was about $12 cheaper!
I bought the NYX matte lipstick in whipped caviar because of another comparison and it is my new favorite lipstick, not too drying, which I find of a lot of other matte formulations.
I used up my Mac Ruby Woo and decided to try the Knicks. As far as the texture I prefer the NYX lipstick however the color is not the same. Ruby Woo definitely has a more impactful color. If you love Ruby Woo, Nyx won’t cut it. But if you’re interested in a nice comfortable red Matte lipstick, the Nyx will do.