Which database option provides single-digit millisecond latency at any scale?

Amazon DynamoDB is designed as a fully managed NoSQL database service, which inherently provides capabilities for single-digit millisecond latency at any scale. This performance is due to its architecture, which is optimized for high throughput and low latency by distributing data across multiple servers in a highly efficient manner.

DynamoDB achieves this by using solid-state drives (SSDs) for faster disk access and advanced caching mechanisms. Additionally, its ability to automatically scale and provide on-demand throughput makes it particularly effective for applications that require consistent low-latency access to large data sets, regardless of the size and throughput demands.

In contrast, other options like Amazon RDS and Amazon Aurora, while offering good performance and scalability for relational database workloads, are typically not optimized for the same level of low-latency access and may have higher latency compared to DynamoDB. Amazon S3, being an object storage service, is designed for high durability and scale but does not provide the same low-latency data retrieval as DynamoDB.