Braket arn_aws_braket_us-west-1_device_qpu_rigetti_cepheus-1-108q vs IQM iqm_garnet

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 Braket arn_aws_braket_us-west-1_device_qpu_rigetti_cepheus-1-108q
Metriq · CC-BY-4.0
IQM iqm_garnet
Metriq · CC-BY-4.0
Bell-state effective qubits (higher better) 5 20
EPLG (error/layer) (lower better) 0.00204942 0.00822524
QAOA approx. ratio (higher better) 0 0.143202
Captured: 2026-07-24 (arn_aws_braket_us-west-1_device_qpu_rigetti_cepheus-1-108q) · 2026-03-02 (iqm_garnet). Full histories: arn_aws_braket_us-west-1_device_qpu_rigetti_cepheus-1-108q · iqm_garnet · leaderboard.