I’m looking into getting a newer laptop. I’ve had a late 2011 MacBook Pro that is getting sluggish with all of the programs I run. I’m considering the 2015 and 2017 MacBook Pro 13 inch models. The 2015 would have an i7 and like 3.1 ghz where the 2017 have an i5 and 2.5(ish) ghz for anything under about 2200. I could get 16 gb of ram in each. Would having the Kaby lake make up for the slightly lower specs? Is it enough of a difference to pay the$800 price difference? Will they really run at very different speeds. I wish apple had a 13 inch quad core but unfortunately they don’t. What would be better considering price and processing power?