digital silicon
Digital
Valid claim: Implements declared discrete state transitions at the reported precision.
Bounded substrate comparison
Digital and mixed-signal neuromorphic hardware
How can deterministic digital state and variable analog dynamics be compared fairly?
Evidence status
Checked against 1 inspected source
One source was retrieved, identified and read, and the claims below are tied to specific passages at the scope those passages state. Each source also records what it cannot establish.
Rely on this page for
The specific claims that carry a cited passage, at the scope that passage states.
analog dynamics plus digital control
Mixed-signal
Valid claim: Implements measured physical dynamics within reported variability and calibration.
Comparable axes
- Task quality
- Wall-plug energy
- Throughput and stability
Non-equivalences
- Bit precision and analog variability are different error models.
- Calibration is part of mixed-signal operation.
Comparison procedure
- 1.Align task outputs.
- 2.Report error models.
- 3.Include calibration and conversion.
Prohibited inference
Do not compare idealized analog core energy with complete digital system energy or treat physical variability as either free randomness or error without task evidence.
Connected concepts and sources
- NeuroBench: Advancing Neuromorphic Computing Through Collaborative, Fair and Representative Benchmarking · National Institute of Standards and Technology
- Taking Neuromorphic Computing to the Next Level with Loihi 2 · Intel Labs
Direct answer
- Only under a declared system boundary that includes calibration, and by using each substrate error model on its own terms: bit precision bounds digital error, while analog variability requires calibration counted as part of operation rather than excluded from it.
Mechanism and method
- Align task outputs.
- Report error models.
- Include calibration and conversion.
What is measured
- Task quality
- Wall-plug energy
- Throughput and stability
Comparison: Digital and mixed-signal neuromorphic hardware
- Bit precision and analog variability are different error models.
- Calibration is part of mixed-signal operation.
- Must not be read as: Do not compare idealized analog core energy with complete digital system energy or treat physical variability as either free randomness or error without task evidence.
Limitations
- Bit precision and analog variability are different error models.
- Calibration is part of mixed-signal operation.
What this does not establish
- Do not compare idealized analog core energy with complete digital system energy or treat physical variability as either free randomness or error without task evidence.