What do you think will become of silicon and max rates? Surely silicon chips can only do so much and then what...? Well you need a new material to make it go even faster! Check this:
While still in their infancy, DNA computers will be capable of storing billions of times more data than your personal computer. In this article, you'll learn how scientists are using genetic material to create nano-computers that might take the place of silicon-based computers in the next decade. Ref. https://computer.howstuffworks.com/dna-computer.htm
The thing I dread about computers is the ever expanding rate at which they become obsolete. You buy the 'latest' computer ponent today and by tomorrow there is something better out on the market. I do not doubt that the above is not possible, the problem will be controlling it.
Nanophysics: Saving energy with a spot of silver. Tomorrow’s computers will run on light, and gold nanoparticle chains show much promise as light conductors. Now scientists have demonstrated how tiny spots of silver could markedly reduce energy consumption in light-based computation. Ref. Source 2t.