Head-to-head · In-Memory Databases
VoltDB vs GridGain
VoltDB leads on 0 checks, GridGain on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreVoltDB · 8.2/10
- Free trialonly GridGain
- Most featuresGridGain · 4 of 4
VoltDB scores higher on our rubric for in-memory databases: 8.2 against 7.6 out of 10; our editors rank them #10 and #15.
VoltDB is the better fit for real-time transactional SQL workloads. GridGain is the better fit for enterprise in-memory SQL and data processing.
- VoltDB fits best
Real-time transactional SQL workloads
- GridGain fits best
Enterprise in-memory SQL and data processing
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Side by side
| Feature | VoltDB 8.2/10 Visit ↗ | GridGain 7.6/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 8.2 | 7.6 |
| Ranking | #10 in In-Memory Databases | #15 in In-Memory Databases |
| Best for | Real-time transactional SQL workloads | Enterprise in-memory SQL and data processing |
| Pricing model | Paid | Paid |
| Starting price | — | Pricing on request · 30-day trial |
| Free plan | — | — |
| Free trial | — | 30 days |
| Deployment | Cloud, Self-hosted | Cloud, Self-hosted |
| Support | Email, Phone, Tickets, Docs | Docs · 24/7 |
| Integrations | 2 integrations | 10 integrations |
| Built for | Mid-market, Enterprise | Enterprise |
| Features VoltDB 3/4 · GridGain 4/4 | ||
| Data persistence | ✓ | ✓ |
| High availability | ✓ | ✓ |
| SQL support | ✓ | ✓ |
| Vector search | Not checked yet | ✓ (best) |
| Specs | ||
| Deployment | Both | Both |
| Included memory | Not checked yet | Not checked yet |
| Supported data models | relational, document/JSON | key-value, relational, document, geospatial, unstructured data |
| Our review | ||
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| Our verdict | VoltDB is an in-memory relational database and real-time data platform for applications that process streaming events and transactions with low latency. It is aimed at enterprise workloads in telecommunications, financial services, gaming,… Read the review → |
GridGain is an enterprise in-memory data platform for transactional, streaming, analytical, and AI/ML workloads. It combines distributed in-memory processing with configurable disk persistence, ANSI SQL, key-value APIs, ACID transactions,… Read the review → |
Strengths and trade-offs
VoltDB — where it wins
- Serializable ACID transactions with stored procedures
- Synchronous and cross-datacenter replication
- Kafka integration with streaming analytics capabilities
Where it doesn't
- Pricing is sales-led rather than transparently published
- Designed for specialized real-time workloads, not general-purpose use
- Deployment focuses on Linux, APIs, and self-hosted environments
GridGain — where it wins
- Combines in-memory and persistent storage with configurable durability
- Supports SQL, ACID transactions, scaling, replication, and recovery
- Connects with Kafka, Spark, Oracle GoldenGate, and data formats
Where it doesn't
- Pricing requires contacting sales rather than selecting a public plan
- Vector search requires an eligible license
- May exceed the needs of teams seeking a narrow caching tool
- VoltDB8.2/10 · Pricing on request
A strong fit for low-latency SQL workloads that need transactions, persistence, and replication.
Visit VoltDBFull verdict → - GridGain7.6/10 · Pricing on request · 30-day trial
A broad enterprise platform combining in-memory speed, persistence, SQL, and distributed processing.
Visit GridGainFull verdict →
All In-Memory databases comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update