EC2 vs S3
EC2 (Elastic Compute Cloud) and S3 (Simple Storage Service) both come up in technology conversations and get confused. Here's the plain-English difference, side by side, so you can use each one with confidence.
The key difference: EC2 refers to elastic compute cloud, while S3 refers to simple storage service — they describe different things even when they show up in the same sentence.
EC2 — Elastic Compute Cloud
Amazon's on-demand virtual server product — the original cloud primitive. EC2 instances are the raw compute beneath most managed AWS services.
S3 — Simple Storage Service
Amazon's object storage product, now the de facto API for cloud blob storage. S3 is the backbone of most data lakes, backups, and static asset delivery on AWS.
When to use EC2
Reach for "EC2" when the conversation is specifically about elastic compute cloud. Amazon's on-demand virtual server product — the original cloud primitive. EC2 instances are the raw compute beneath most managed AWS services.
When to use S3
Reach for "S3" when the conversation is specifically about simple storage service. Amazon's object storage product, now the de facto API for cloud blob storage. S3 is the backbone of most data lakes, backups, and static asset delivery on AWS.
FAQs
What is the difference between EC2 and S3?
EC2 stands for Elastic Compute Cloud — Amazon's on-demand virtual server product — the original cloud primitive. EC2 instances are the raw compute beneath most managed AWS services. S3 stands for Simple Storage Service — Amazon's object storage product, now the de facto API for cloud blob storage. S3 is the backbone of most data lakes, backups, and static asset delivery on AWS.
Are EC2 and S3 the same thing?
No. They're often used in the same conversation because they're related, but they describe different concepts. EC2 = Elastic Compute Cloud. S3 = Simple Storage Service.
When should I use EC2 vs S3?
Use EC2 when you're specifically referring to elastic compute cloud. Use S3 when the topic is simple storage service.