Im looking into buying a Convertable laptop, and I am trying to stay under 800 dollars, I really like the Lenovo Helix, and would really like an I7, however the clearance models I am finding in my price range have the IVY bridge architecture, which is an older chip. My question is, is it worth the money to but a computer with a processor that is a few years old, or should I look for a convertible with a haswell generation processor, or a newer core M processor