Cost Optimization & FinOpsPart 17
kevin w6 min
Amazon DynamoDB Pricing: The On-Demand vs Provisioned Crossover and the GSI Multiplier
DynamoDB on-demand bills $0.625 per million writes and $0.125 per million reads — pay-per-request convenience with no capacity planning. Provisioned at $0.00065/WCU-hour wins on steady traffic above ~30% utilization. Every GSI doubles the write cost, IA tier cuts storage 60% but adds 25% to request fees, and Global Tables compound the bill per region.