Before revision:  We find that the benchmark use cases we examine require 7.5k logical qubits and a T-depth of 46 millionand thus estimate that quantum advantage would require a logical clock speed of 10Mhz . While the resource requirements given here are out of reach of current systems, we hope they will provide a roadmap for further improvements in algorithms, implementations, and planned hardware architectures.
After revision:  We find that the benchmark use cases we examine require 7.5k logical qubits and a T-depth of 46 millionand thus estimate that quantum advantage would require executing this program at the order of a second . While the resource requirements given here are out of reach of current systems, we hope they will provide a roadmap for further improvements in algorithms, implementations, and planned hardware architectures.