  An important challenge in superconducting quantum computing is the need to
physically couple many devices using quasi-two-dimensional fabrication
processes. Recent advances in the design and fabrication of quantum annealing
processors have enabled an increase in pairwise connectivity among thousands of
qubits. One benefit of this is the ability to minor-embed optimization problems
using fewer physical qubits for each logical spin. Here we demonstrate the
benefit of this progress in the problem of minimizing the energy of
three-dimensional spin glasses. Comparing the previous generation D-Wave 2000Q
system to the new Advantage system, we observe improved scaling of solution
time and improved consistency over multiple graph embeddings.
