QuantumAtlas

Interactive Tool

Compare Quantum Processors

Select up to three quantum processors to compare their specs side by side — qubit count, architecture, error rates, and more.

SpecIBM CondorGoogle Sycamore
CompanyIBMGoogle (Google Quantum AI)
Qubit Count1,12153
Qubit TypeSuperconducting (fixed-frequency transmon qubits)Superconducting (transmon qubits with tunable couplers)
ArchitectureHeavy-hex style lattice, cross-resonance gates, high-density cryogenic flex wiring2D rectangular grid with nearest-neighbor tunable couplers
Released20232019
ConnectivityNearest-neighbor connections in a heavy-hex style lattice; each qubit connects to two or three neighbors2D grid: each qubit connects to its four nearest neighbors through tunable couplers (86 couplers in the 53-qubit device)
Gate Error (2Q)Comparable to the 433-qubit Osprey; IBM reported its 133-qubit Heron as roughly five times lower in error than CondorAbout 0.15% for single-qubit gates and roughly 0.6% for simultaneous two-qubit gates in the 2019 experiment
Coherence TimeTens to roughly one hundred microseconds, typical of IBM's fixed-frequency transmons of this generation (no separate datasheet published)T1 around 15 to 20 microseconds at the time of the 2019 experiment
Operating TempAbout 15 millikelvin (inside a dilution refrigerator)About 20 millikelvin
Cloud AccessNot publicly availableNot publicly available

Want the full spec sheet and context for any of these processors? Click a processor name above, or browse the full Hardware Database.