Google said that an experimental quantum processor performed a calculation in minutes that would’ve taken an ordinary supercomputer thousands of years.
IBM quickly took issue with Google’s claim that it had achieved “quantum supremacy,” a term that refers to a point when a quantum computer can perform a calculation that a traditional computer can’t complete within its lifetime. Google’s leaked paper showed that its quantum processor, Sycamore, finished a calculation in three minutes and 20 seconds — and that it would take the world’s fastest supercomputer 10,000 years to do the same thing…But IBM researchers say that Google underestimated the conventional supercomputer
For more, check out this NBC News story.