For your interest while waiting for shipment. http://appleinsider.com/articles/17...macbook-boasts-incremental-speed-improvements Nice video review of 2017 vs 2016. Over a 60% improvement in HD speed. Also "CPU performance of around 26 percent and graphics performance of about 50 percent compared to the 2016 MacBook". But don't seem specific about what processor (I suspect M3 to M3). They don't see much use for 16 gb and do discuss heat issues and benchmarks. They seem to think most should look at the MBP.