Looking at those benchmarks make me realize how much of a trouper my 15" i7 2011 with an SSD is. The GB scores for my 2011 are 2512\7487. The 13" (i5) is 3,876/7,504. So single core is about 1/3 better and multicore is about the same. Now, that's not accounting for things like bus speeds, SSD speeds. And a much better screen. Obviously, the 2016 15" i7 is much better at 4,309/13,367. But I paid like 1900 for the 15" and the baseline 15 starts at $2300 now.
I'm not in the market for a new computer anyway. Since I have the 15" and a 2014 Air -- and a lot of my mobile needs are taken care of with my iPad Pro -- it makes sense for me to keep saving my pennies until I can afford and need whatever the top end 15" is. Because that's clearly where the bang for the buck is.