True, but I assume the console version is better optimized, so its not like you can fully compare them on even ground.
Knowing AAA titles in the past have not really optimized PC versions, I doubt you can see a huge improvement in the PC version untill the next 2 gpu generations.
That beeing said, yes, the PC version is better.
Witcher series is not badly optimized for PC historicaly, so we can have some hope
.