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We benchmark the quantum processing units of the largest quantum annealers todate, the 5000+ qubit quantum annealer Advantage and its 2000+ qubitpredecessor D-Wave 2000Q, using tail assignment and exact cover problems fromaircraft scheduling scenarios. The benchmark set contains small, intermediate,and large problems with both sparsely connected and almost fully connectedinstances. We find that Advantage outperforms D-Wave 2000Q for almost allproblems, with a notable increase in success rate and problem size. Inparticular, Advantage is also able to solve the largest problems with 120logical qubits that D-Wave 2000Q cannot solve anymore. Furthermore, problemsthat can still be solved by D-Wave 2000Q are solved faster by Advantage. Wefind, however, that D-Wave 2000Q can achieve better success rates for sparselyconnected problems that do not require the many new couplers present onAdvantage, so improving the connectivity of a quantum annealer does not per seimprove its performance.

Benchmarking Advantage and D-Wave 2000Q quantum annealers with exact cover problems