Redis vs Memcached
Comparación detallada para ayudarte a elegir la herramienta correcta en 2026
🏆 Veredicto Rápido
Ganador: Redis
Redis is the more versatile choice for most use cases, offering rich data structures, persistence, and pub/sub. Memcached excels as a pure, high-performance cache when simplicity is key.
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📊 Visual Comparison
Comparación de Puntuación General
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Redis Destacados
- ✅ Rich data structures (lists, sets, sorted sets, hashes)
- ✅ Built-in persistence options (RDB, AOF)
- 💰 Free (self-hosted) / varies managed
Memcached Destacados
- ✅ Extremely simple and lightweight
- ✅ Multi-threaded architecture
- 💰 Free (self-hosted) / varies managed
Comparación de características
| Feature | Redis | Memcached |
|---|---|---|
| Data Structures | Strings, Lists, Sets, Hashes, Sorted Sets, Streams | Strings only |
| Persistence | RDB snapshots + AOF | ✗ |
| Replication | Master-replica | No built-in |
| Clustering | Redis Cluster | Client-side sharding |
| Pub/Sub | ✓ | ✗ |
| Lua Scripting | ✓ | ✗ |
| TTL Support | ✓ | ✓ |
| Transactions | MULTI/EXEC | ✗ |
| Modules | RedisJSON, RediSearch, etc. | ✗ |
| Max Value Size | 512MB | 1MB (default) |
¿Qué es Redis?
Redis is an open-source, in-memory data structure store used as a database, cache, message broker, and streaming engine. It supports rich data structures beyond simple key-value pairs.
✅Ventajas
- •Rich data structures (lists, sets, sorted sets, hashes)
- •Built-in persistence options (RDB, AOF)
- •Pub/Sub messaging support
- •Lua scripting for complex operations
- •Cluster mode for horizontal scaling
- •Active community and ecosystem
❌Desventajas
- •Higher memory usage than Memcached
- •Single-threaded for commands (I/O is multi-threaded since v6)
- •Licensing changes with Redis Ltd
- •More complex configuration
- •Persistence can impact performance
¿Qué es Memcached?
Memcached is a high-performance, distributed memory object caching system designed for speeding up dynamic web applications by alleviating database load. It's simple, fast, and battle-tested.
✅Ventajas
- •Extremely simple and lightweight
- •Multi-threaded architecture
- •Lower memory overhead per key
- •Predictable performance
- •Mature and battle-tested at scale
- •Easy horizontal scaling
❌Desventajas
- •Only supports simple key-value strings
- •No built-in persistence
- •No pub/sub or messaging
- •No built-in replication
- •Limited max value size (1MB default)
- •Less active development
Comparación de precios
Redis
Free (self-hosted) / varies managed
Open source + managed services
✓ Plan gratuito disponibleView detailed pricing →Memcached
Free (self-hosted) / varies managed
Open source + managed services
✓ Plan gratuito disponibleView detailed pricing →📊Análisis en Profundidad: Redis vs Memcached
Elegir entre Redis y Memcached puede ser desafiante, ya que ambas herramientas ofrecen características atractivas para flujos de trabajo modernos. En esta comparación completa, analizaremos cada aspecto para ayudarte a tomar una decisión informada.
Redis
Redis is an open-source, in-memory data structure store used as a database, cache, message broker, and streaming engine. It supports rich data structures beyond simple key-value pairs.
Memcached
Memcached is a high-performance, distributed memory object caching system designed for speeding up dynamic web applications by alleviating database load. It's simple, fast, and battle-tested.
🎯Mejores Casos de Uso
Cuándo elegir Redis
- ✓Para Equipos:
Rich data structures (lists, sets, sorted sets, hashes)
- ✓Para Pequeñas Empresas:
Built-in persistence options (RDB, AOF)
- ✓Para Empresas:
Pub/Sub messaging support
Cuándo elegir Memcached
- ✓Para Individuos:
Extremely simple and lightweight
- ✓Para Pequeñas Empresas:
Multi-threaded architecture
- ✓Para Equipos:
Lower memory overhead per key
🔍Análisis Profundo de Características
Data Structures
Persistence
Replication
Clustering
Pub/Sub
Lua Scripting
💰Análisis de Precios
Redis
Open source + managed services
✅ Free tier availableMemcached
Open source + managed services
✅ Free tier available💡 Pro Tip
Both tools offer free trials or tiers. We recommend testing both with your actual workflow before committing to a paid plan.
🏆Nuestra Recomendación
Después de un análisis y pruebas extensas, esta es nuestra opinión: Tanto Redis como Memcached son excelentes herramientas que pueden mejorar significativamente tu productividad. La mejor elección depende de tus necesidades específicas.
Choose Redis if:
You need rich data structures, persistence, pub/sub messaging, or want a versatile in-memory data store beyond simple caching.
Choose Memcached if:
You only need simple key-value caching, want lower memory overhead, or need multi-threaded performance for high-throughput caching.
Preguntas frecuentes
For simple key-value operations, performance is comparable. Memcached can be slightly faster for pure caching due to its multi-threaded architecture, but the difference is negligible for most applications.
Veredicto final: ¿Cuál deberías elegir?
✨ Elige Redis si
You need rich data structures, persistence, pub/sub messaging, or want a versatile in-memory data store beyond simple caching.
✨ Elige Memcached si
You only need simple key-value caching, want lower memory overhead, or need multi-threaded performance for high-throughput caching.