That's a pretty different comparison. The current-generation Retina Macbook Pro was released almost exactly a year ago. It's due for a refresh. The XPS 15 yo

That's a pretty different comparison. The current-generation Retina Macbook Pro was released almost exactly a year ago. It's due for a refresh. The XPS 15 you're linking was released in October and likely won't be refreshed again for another 6 months. The Dell might well be the better of the two, but you would expect that since it's a recent release. It's not as if the MacBook Pro Retina has languished for years, though.