If you can wait 3 months then wait. In Q1 2018 we should see first laptops with Coffe Lake processors, like Dell XPS 15 refresh and Thinkpad T480p. If you can't

If you can wait 3 months then wait. In Q1 2018 we should see first laptops with Coffe Lake processors, like Dell XPS 15 refresh and Thinkpad T480p. If you can't wait then go with current versions of those.