4 Things to Know About RAM for Docker Development

32GB is the sweet spot for most developers A typical stack with a web server, database, cache, and queue uses 4-8GB total. Even ten containers usually stay under 16GB.

More RAM won’t speed up your containers Docker’s bottleneck on a dev machine is almost never RAM. It’s CPU and disk I/O that actually slow things down.

64GB only helps with specific workloads You need it for memory-hungry services like Elasticsearch, multiple heavy databases, or running 50 containers for integration testing. Most Rails, Node, Python backends with Postgres and Redis don’t demand that much.

Spend your money on a faster SSD or more cores first If the price difference is small, future-proofing is fine. But don’t pay an extra $400 just for Docker containers.