IBM ibm_brisbane vs IBM ibmq_16_melbourne

Side-by-side comparison over the metrics both devices report. Values come from different sources with different methodologies — mind the provenance badges; vendor-reported figures are manufacturer claims.

Metric IBM ibm_brisbane
IBM · Apache-2.0
IBM ibmq_16_melbourne
IBM · Apache-2.0
Best 2Q fidelity (higher better) 0.996343 0.985267
Median 2Q error (lower better) 0.00767577 0.0290418
Median readout error (lower better) 0.0200195 0.0476
Median T1 (µs) (higher better) 231.95 µs 53.161 µs
Median T2 (µs) (higher better) 150.04 µs 54.902 µs
Captured: 2025-02-26 (ibm_brisbane) · 2021-03-15 (ibmq_16_melbourne). Full histories: ibm_brisbane · ibmq_16_melbourne · leaderboard.