Between 1983 and 1985 the fastest computer in the world was the Cray X-MP: Its two 105MHz processors paired with 16MB memory produced a performance of 1 million operations per second.
The price? 15 million dollars plus the cost of hard drives.
It was used for complex calculations and early CGI animations (including an animated Marvel intro in 1986, featuring a silvery, super-agile Spiderman).
Today, an Apple iPhone XS is 1500 times faster and 15000 times cheaper. We generally use it for selfies.