The Quadros are better, because they have software specific support, and when you need 101% design accuracy, because you're designing bridges or something, you need that.
BUT that Quadro isn't very powerful, except for running large displays/multiple displays, so the 1050 is actually more powerful.
The P600 is actually a cut down version of the 1050ti, which the 1050 also is, but less cut down than the p600.