Does Kontakt 7 have any measurable improvements for CPU efficiency over Kontakt 5 or 6?

I've been using Kontakt 5 for years. Seems that some vsts now require 7. Any OTHER reason to go to Kontakt 7? Like better convolution, that sort of thing? (Running Win 10 Core [email protected], 48gb Dual Channel Ram. 4 sata 960 500 gb ssds. RME HDSP 9632.