IBM ibm_aachen vs IBM ibmq_kolkata
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_aachen
IBM · Apache-2.0
|
IBM ibmq_kolkata
IBM · Apache-2.0
|
|---|---|---|
| Best 2Q fidelity (higher better) | 0.999308 | 0.994992 |
| Median 2Q error (lower better) | 0.00141979 | 0.00754247 |
| Median readout error (lower better) | 0.00738525 | 0.0096 |
| Median T1 (µs) (higher better) | 232.35 µs | 111.48 µs |
| Median T2 (µs) (higher better) | 255.43 µs | 82.676 µs |
Captured: 2026-04-17 (ibm_aachen) · 2021-12-09 (ibmq_kolkata).
Full histories: ibm_aachen ·
ibmq_kolkata ·
leaderboard.