Amazon RDS vs AlloyDB for PostgreSQL

Amazon RDS9.2Visit AlloyDB for PostgreSQL8.9Visit

Higher score Amazon RDS #3 in PostgreSQL Hosting 9.2/10 Paid ✓ 2 of 4 features Visit Amazon RDS

vs

AlloyDB for PostgreSQL #6 in PostgreSQL Hosting 8.9/10 From $0.07 · 30-day trial Free trial✓ 2 of 4 features Visit Google Cloud

• Amazon RDS fits best

  AWS-native managed database operations

• AlloyDB for PostgreSQL fits best

  Analytics- and AI-heavy PostgreSQL workloads

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Side by side

Feature	Amazon RDS 9.2/10 Visit ↗	AlloyDB for PostgreSQL 8.9/10 Visit ↗
At a glance
Editor score	9.2	8.9
Ranking	#3 in PostgreSQL Hosting	#6 in PostgreSQL Hosting
Best for	AWS-native managed database operations	Analytics- and AI-heavy PostgreSQL workloads
Pricing model	Paid	Paid
Starting price	Not checked yet	From $0.07 · 30-day trial
Free plan	—	—
Free trial	—	30 days
Deployment	Cloud, Self-hosted	Cloud
Platforms	Web	Web
Integrations	8 integrations	5 integrations
Features Amazon RDS 2/4 · AlloyDB for PostgreSQL 2/4
High availability	✓	✓
Point-in-time recovery	Not checked yet	Not checked yet
Read replicas	✓	✓
Custom extensions	Not checked yet	Not checked yet
Specs
Maximum storage	Not checked yet	Not checked yet
Backup retention	Not checked yet	14 days
Our review
Pros	Managed provisioning, patching, backups, and recovery Multi-AZ failover and read replicas support availability and scaling IAM, VPC, CloudWatch, and RDS Proxy integration	High availability, automatic failover, backups, and read replicas Columnar engine, index advisor, and adaptive query optimization Vector search and AI integration with Google Cloud services
Cons	Usage-based pricing varies by region and configuration No free plan Broad multi-engine scope may exceed narrow PostgreSQL needs	No free plan; pricing is usage-based rather than fixed Costs also include memory, storage, backups, and networking Designed for Google Cloud rather than self-managed deployments
Our verdict	Amazon RDS is a managed relational database service for deploying, operating, and scaling databases in AWS. For PostgreSQL teams, it combines managed provisioning, patching, backups, recovery, monitoring, access control, and networking… Read the review →	AlloyDB for PostgreSQL is a fully managed relational database service for organizations running demanding transactional, analytical, and AI-enabled applications on Google Cloud. It maintains PostgreSQL compatibility while separating… Read the review →

Strengths and trade-offs

• Amazon RDS — where it wins

  • Managed provisioning, patching, backups, and recovery
  • Multi-AZ failover and read replicas support availability and scaling
  • IAM, VPC, CloudWatch, and RDS Proxy integration

  Where it doesn't

  • Usage-based pricing varies by region and configuration
  • No free plan
  • Broad multi-engine scope may exceed narrow PostgreSQL needs

• AlloyDB for PostgreSQL — where it wins

  • High availability, automatic failover, backups, and read replicas
  • Columnar engine, index advisor, and adaptive query optimization
  • Vector search and AI integration with Google Cloud services

  Where it doesn't

  • No free plan; pricing is usage-based rather than fixed
  • Costs also include memory, storage, backups, and networking
  • Designed for Google Cloud rather than self-managed deployments

• Amazon RDS9.2/10 · Paid

  A broad AWS-managed option for PostgreSQL teams that need integrated operations.

  Visit Amazon RDSFull verdict →
• AlloyDB for PostgreSQL8.9/10 · From $0.07 · 30-day trial

  A managed PostgreSQL service for demanding transactional, analytical, and AI workloads.

  Visit Google CloudFull verdict →