Antec VP 500P would do if you'd have 75W GPU or so (e.g GTX 1050 Ti). But with 170W GPU, i'd be far more comfortable using Seasonic S12II-520 to power it.
It's not because Antec VP 500P doesn't have enough wattage. That it has, 500W to be exact. But what Antec unit doesn't have is the build quality and there's no way to tell if Antec unit has good enough voltage regulation to keep your GPU running at it's peak power.
The warranty length alone can show you how much PSU OEMs trust their PSUs. Antec VP 500P comes with 2 years of warranty, while Seasonic S12II-520 comes with 5 years of OEM warranty.
Specs:
Antec VP 500P:
http://www.antec.com/product.php?fid=5022051&id=706329
Seasonic S12II-520: https://seasonic.com/product/s12ii-520/
Far better build quality with 3 years longer warranty (and extra 20W of output power) for just a mere €12, Seasonic S12II-520 is great deal over Antec VP 500P.