At what speed? As far as I understood, all the presented performance increases are for optimized apps. I guess this is also where Apple sees the primary customer base.
For developers, scientists, etc., it would be interesting if it improves any of their typical use-cases – memory is one big limitation (I don't necessarily need 32GB on the laptop, that's what I use a workstation for, but after using my current Macbook for 7 years, I don't want a new laptop that feels limited after a few years)