Blockchain vs Traditional Database
When should you use blockchain over a traditional database? Compare performance, cost, security, and ideal use cases.
| Criteria | Blockchain | Traditional Database |
|---|---|---|
| Data Immutability | Tamper-proof by design | Admin can modify records |
| Read/Write Speed | 15–65 TPS (L1) | 10,000+ TPS |
| Operating Cost | Gas fees per transaction | Fixed infrastructure cost |
| Transparency | Publicly verifiable | Requires trust in operator |
| Decentralization | No single point of control | Centrally administered |
| Query Flexibility | Limited on-chain queries | Full SQL / NoSQL support |
| Regulatory Compliance | Evolving legal framework | Well-established frameworks |
| Trustless Coordination | Built-in consensus | Requires intermediary trust |
Verdict
Blockchain excels for use cases requiring trustless coordination, immutability, and transparency. Traditional databases remain superior for high-throughput, low-cost, query-heavy applications.