[heeton]

Your phone operates roughly 10x slower in terms of Hz.

[ben_w]

According to page 10, the Cray 3's clock speed was 500 MHz: https://archive.computerhistory.org/resources/access/text/20...

Phones beat that by a factor of x2-x4.

And has 1-16 processors of 1 gigaflop each; depending on how much precision you want, a phone can beat that by a factor of just over x2000.