* Single Instance - You can use ArangoDB as a specialized database for key/values, documents or graphs and even mix up those data models in one query. * Cluster - Synchronous replication. Automatic failover. Self-organizing cluster state management. Fast cluster startup. Easy maintenance. Multiple data models. All with an ArangoDB Cluster. * Mixed Services - Modern Architectures demand scalability, polyglot persistence and low maintenance. Modern data center operating systems put your data cluster on autopilot. * Graph - ArangoDB provides also the full feature set of a mature graph store (e.g. pattern matching, shortest path, full blown traversals) and due to a little magic it can perform graph queries very fast compared to many other leading graph solutions. * Document - You can store as many attributes in a document as you like (default size of a document is 32MB, but configurable to your needs). ArangoDB has a wide feature-set for querying and working with documents like joins, secondary indexes or acid transactions. You can horizontally scale join usage to the technically possible.

* Built for Speed - OrientDB was engineered from the ground up with performance as a key specification. It is fast on both read and write operations. On writes, it can store up to 120,000 records per second*. * No More Joins - OrientDB can embed documents like any other document database, but also supports relationships. It doesn’t use the costly JOIN. Instead, OrientDB uses super-fast, persistent pointers between records, taken from the graph database world. You can traverse parts of or entire trees and graphs of records in just a few milliseconds. * Unmatched Flexibility - Replacing your DBMS, once it no longer meets requirements, can be a huge cost in time and resources. * Zero-Configuration Multi-Master Architecture - OrientDB supports a Multi-Master + Sharded architecture, so all the servers are masters. This provides horizontal scalability and reliability. * Elastic Linear Scalability - With a master-slave architecture, the master often becomes the bottleneck. With OrientDB, throughput is not limited by a single server. * Easy to Install and Use - OrientDB is written entirely in Java and can run on any platform without configuration and installation. It’s a drop in replacement for the most common existing graph databases in deployment today.