No one cares about CPU performance. I've got a SD820 now in my Axon 7, and I can tell you there is 0 difference with a SD625 in daily use.
Except that the SD625 is cheaper and has an incredible battery life.
The only company realising that people care about UX in stead of specs seems to be Xiaomi. Consistently choosing SD625 and SD660 for their phones, because it is clear that any CPU can pull a phone.
And let's be honest. No one cares about mobile VR.
I'll take SD625 and 5000mAh battery over SD835 and 6GB RAM any day.