m4vsr4
Size for size, m4 is on average 27% cheaper than r4 on demand in US East (N. Virginia), across 5 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 | m4 | r4 | r4 vs m4 |
|---|---|---|---|
| large | db.m4.large $0.182 | db.r4.large $0.25 | ▲ 37% |
| xlarge | db.m4.xlarge $0.365 | db.r4.xlarge $0.5 | ▲ 37% |
| 2xlarge | db.m4.2xlarge $0.73 | db.r4.2xlarge $1.00 | ▲ 37% |
| 4xlarge | db.m4.4xlarge $1.461 | db.r4.4xlarge $2.00 | ▲ 37% |
| 16xlarge | db.m4.16xlarge $5.844 | db.r4.16xlarge $8.00 | ▲ 37% |
Key differences
The biggest lead each family has.
Where m4 leads
On-demand priceCheaper in 5 of 5 shared sizes
27% cheaperWhere r4 leads
No clear lead on the measures we compare.
Keep exploring
Each family's own page, and how it compares with others.