Fig. 8: Power consumption of the QUBO solvers running simulated annealing (SA) or TABU search on CPU, and the parallelized version of simulated annealing on Loihi 2.
From: The neurobench framework for benchmarking neuromorphic computing algorithms and systems

The CPU solvers require up to 37 × more power than the neuromorphic algorithm on Loihi 2. Since the QUBO workloads were run for a fixed timeout, differences in power consumption are equivalent to differences in energy consumption of the processors. Figure taken, with permission, from Pierro et al.57.