Databases · Updated 2026
Quick Verdict
Choose DynamoDB for applications demanding predictable, single-digit millisecond latency at massive, unpredictable scale. Choose Neon for applications that require the full power of SQL and the Postgres ecosystem with modern, serverless operations.
DynamoDB is a proprietary NoSQL key-value and document database built for seamless, horizontal scaling with a pay-per-request model. Neon is a serverless, auto-scaling version of PostgreSQL, offering full SQL compliance and unique developer features like branching, with pricing based on compute hours and storage. Their core difference is data model: DynamoDB excels at high-throughput, low-latency access to simple, denormalized data, while Neon provides the relational model, complex queries, and ACID guarantees. DynamoDB targets high-scale, low-latency use cases like gaming and IoT, whereas Neon targets teams building traditional applications that need a scalable, familiar Postgres.
Side-by-Side Comparison
| Aspect | DynamoDB | Neon |
|---|---|---|
| Pricing | Pay-per-request for reads/writes | Per-hour compute + per-GB storage |
| Ease of Use | Simple core API, but data modeling requires careful planning | Familiar SQL and Postgres tooling, with modern ops |
| Scalability | Seamless, automatic horizontal scaling | Vertical and horizontal scaling via serverless compute |
| Integrations | Deep integration with AWS ecosystem | Compatible with the vast Postgres ecosystem |
| Open Source | No | Yes (based on PostgreSQL) |
| Best For | High-scale, low-latency apps (gaming, ad-tech) | Modern apps needing scalable, full-featured SQL |
Choose DynamoDB if...
DynamoDB is the better choice when your primary requirements are consistent, single-digit millisecond latency under massive, unpredictable traffic loads. It is ideal for applications with simple, high-volume access patterns (key-value lookups) that benefit from its seamless, automatic scaling and where you prefer to avoid managing database servers or connections.
Choose Neon if...
Neon is the better choice when your application relies on complex queries, joins, transactions, and the full relational model, but you also want serverless, autoscaling operations. It is perfect for teams that want a developer-friendly Postgres with modern workflows like instant branching for development and testing, and who prefer to avoid upfront capacity planning.
Product Details
DynamoDB
A fully managed, serverless NoSQL database service designed for high performance at any scale.
Pricing
Pay-per-request pricing model, starting at $1.25 per million write request units and $0.25 per million read request units
Best For
Developers building modern applications that require consistent, low-latency data access at massive, unpredictable scale, such as gaming, ad-tech, and IoT platforms.
Key Features
Pros
- + Predictable, low-latency performance even at petabyte scale
- + Eliminates operational overhead with fully managed, serverless operations
- + Seamless integration with the broader AWS ecosystem and services
Cons
- - Limited query flexibility compared to relational databases (no joins, complex queries)
- - Can become expensive for high, consistent throughput workloads without careful capacity planning
- - Vendor lock-in to AWS infrastructure and proprietary API
Neon
A fully managed serverless Postgres with a built-in autoscaling compute layer and cost-effective, bottomless storage.
Pricing
$0.20/hour for compute + $0.10/GB-month for storage
Best For
Development teams and modern applications that need a scalable, developer-friendly Postgres with features like instant branching and pay-per-use pricing.
Key Features
Pros
- + Developer-centric features like instant branching dramatically improve workflows
- + Cost-effective for spiky workloads due to autoscaling and per-second billing
- + Fully compatible with the PostgreSQL ecosystem and tools
Cons
- - Serverless architecture can introduce cold start latency for inactive databases
- - Pricing model (compute + storage) can be complex to estimate compared to flat-rate plans
- - A newer platform with a smaller operational track record than established cloud providers