Amazon ElastiCache vs VoltDB
Amazon ElastiCache
aws.amazon.comVoltDB
voltactivedata.comSide by side
| Figure | Amazon ElastiCache | VoltDB |
|---|---|---|
| Price from | $0.09/mo | Free |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | Yes |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 6 | 4 |
| Spec score · In-Memory Databases | 9.4 (#1) | 8.2 (#8) |
| Deployment | Customers can run ElastiCache as a serverless cache or as a node-based cluster. | Volt supports on-premises, cloud Kubernetes or VM-based deployments, and hybrid deployments. |
| Durability | Valkey 9.0+ clusters can use a Multi-AZ transactional log with synchronous zero-data-loss writes or asynchronous microsecond-latency writes. | VoltDB Enterprise Edition provides command logging, locally replicated partitions (K-safety) and wide-area database replication for durability and high availability. |
| Founded | 2006 | 2009 |
| High availability | Serverless and Multi-AZ configurations have a 99.99% monthly uptime SLA, while single-AZ configurations have a 99.5% SLA. | Enterprise VoltDB provides K-safety, command logging and replication features for durability and availability. |
| Rating on G2 | 4.5 out of 5 from 88 reviews | 4.3 out of 5 from 6 reviews |
| Rating on Gartner Peer Insights | 4.0 out of 5 from 1 review | 4.9 out of 5 from 9 ratings |
| Rating on TrustRadius | 8.9 out of 10 from 17 reviews | 9 out of 10 from 1 review |
| Scaling | ElastiCache Serverless monitors compute, memory, and network use and scales vertically and horizontally as demand changes. | VoltDB can scale by adding nodes to a cluster, with partitioning automated from the schema. |
| Security controls | ElastiCache supports VPC network isolation, KMS customer keys, IAM authentication, Redis or Valkey AUTH tokens, and automatic certificate lifecycle management. | Authentication and authorization are enabled through configuration, with users, roles and stored-procedure permissions. |
| System requirements | Clusters are designed for access from Amazon EC2, require VPC subnet and security-group preparation, and support all AWS Regions. | The documented baseline includes a 64-bit Linux-based OS, dual-core x86_64 CPU, 4 GB RAM and synchronized system time. |
| What it does | Amazon ElastiCache is a managed cloud service for deploying, operating, and scaling distributed in-memory caches and data stores. | VoltDB is an in-memory, distributed relational database and real-time decisioning platform for high-throughput, low-latency transactional workloads. |
Plans
Amazon ElastiCache
- AWS Free TierFree
- Backup storage$0.09 a month
- ElastiCache Serverless$6 a month
- ElastiCache Serverless$6 a month
- Database Savings PlansPrice not published
- On-demand nodesPrice not published
VoltDB
- Developer EditionFree
- Stream to Decision TrialFree
- Guided EngagementPriced on request
- Guided EngagementPriced on request
In their own words
Amazon ElastiCache
Amazon ElastiCache is a managed caching service compatible with Valkey, Memcached, and Redis OSS, with performance described as microsecond latency. Customers can deploy a serverless cache or a node-based cluster. ElastiCache Serverless monitors compute, memory, and network use and scales vertically and horizontally as demand changes. It replicates data across multiple Availability Zones and offers a 99.99% availability SLA for each cache. Listed uses include application and semantic caching, data and session stores, and leaderboards. It can act as a front-end cache for Amazon RDS, Aurora, DocumentDB, and DynamoDB, and improve performance with EC2 and EMR. Security options include encryption in transit and at rest, IAM authentication, Valkey or Redis OSS AUTH, and role-based access control. CloudWatch provides more than 40 operational metrics at no additional charge. Valkey serverless pricing starts at $6 a month, billed according to stored data in GB-hours and requests measured in ECPUs. Data tiering is unavailable with ElastiCache Serverless.
VoltDB
VoltDB is a distributed, in-memory database and real-time decisioning layer for data processing, stream ingestion, business logic, and AI integration. Its database partitions data and stored procedures so queries can run in parallel while maintaining ACID consistency. Volt Active Data says Volt is built to move from ingest to action in under 10 milliseconds. Clusters scale by adding nodes, with partitioning automated from the schema. Volt connects directly to Kafka or CDC streams and can expose decisions through SQL, REST, or Kafka topics. It supports on-premises, cloud Kubernetes or VM-based, and hybrid deployments. Production databases support Debian 12.11 or later, RHEL 8.8 or later, Rocky Linux 8.8 or later, and Ubuntu 20.04, 22.04, or 24.04; macOS 13 or later is supported for development. Enterprise Edition provides command logging, locally replicated partitions, and wide-area database replication. Authentication, role-based authorization, and TLS/SSL or Kerberos communications are available, but security is disabled by default. The free Developer Edition is not intended for production workloads. A free 30-day trial is listed for Confluent users; production pricing is on request.