m3vsr3
Size for size, m3 is on average 22% cheaper than r3 on demand in US East (N. Virginia), across 3 shared sizes. Same size and generation, tuned for different work (general, compute or memory).
On-demand prices by size in US East (N. Virginia)
USD per hour for PostgreSQL, Single-AZ. Pick a size to compare the two types.
| Size | m3 | r3 | r3 vs m3 |
|---|---|---|---|
| large | db.m3.large $0.195 | db.r3.large $0.25 | ▲ 28% |
| xlarge | db.m3.xlarge $0.39 | db.r3.xlarge $0.5 | ▲ 28% |
| 2xlarge | db.m3.2xlarge $0.775 | db.r3.2xlarge $0.995 | ▲ 28% |
Key differences
The biggest lead each family has.
Where m3 leads
On-demand priceCheaper in 3 of 3 shared sizes
22% cheaperWhere r3 leads
Sizes5 sizes here vs 4
1 moreLargest size32 vCPUs vs 8
BiggerKeep exploring
Each family's own page, and how it compares with others.