r7g.4xlarge
Memory optimized · r7g series · AWS Graviton3 Processor
- vCPU
- 16
- Memory
- 128 GiB
- Linux / hour
- $0.8568
- Per month
- $625
- Per vCPU-hour
- $0.0536
- Per GiB-hour
- $0.00669
Analysis
The r7g.4xlarge is a memory optimized instance in the r7g series with 16 vCPUs and 128 GiB of memory on AWS Graviton3 (up to 2.5 GHz), which makes it memory-heavy at 8 GiB of memory per vCPU.
Running it in Mumbai instead of São Paulo saves $557 a month per instance: $0.6006/hour against $1.36/hour, a 127% spread.
At $0.8568/hour on demand in US East (N. Virginia), about $625 a month, the r7g.4xlarge is one of the cheaper ways to buy memory optimized capacity: only 3% of the 385 current memory optimized types cost less per vCPU-hour than its $0.0536.
It is the cheapest of the 5 processor variants AWS sells at this size and generation. The r7iz.4xlarge on Intel Xeon Scalable (Sapphire Rapids) costs 74% more, and the r7i.4xlarge, the r7gd.4xlarge and the r7a.4xlarge also sit above it.
Compared with the previous generation, it costs 6.2% more than the r6g.4xlarge on AWS Graviton2 ($36.79 more a month per instance), in exchange for the newer processor. The newer r8g.4xlarge on AWS Graviton4 is 10% dearer at $0.9426/hour.
It is size 5 of 8 in the r7g series. Stepping up to the r7g.8xlarge gives 32 vCPUs and 256 GiB for $625 more a month. Dropping to the r7g.2xlarge saves $313 a month.
Price by region (USD per hour)
| Region | Linux | Windows | 1-yr RI | 3-yr RI | |
|---|---|---|---|---|---|
| N. Virginia us-east-1 | $0.8568 | – | $0.5668 | $0.3886 | |
| Ohio us-east-2 | $0.8568 | – | $0.5668 | $0.3886 | |
| Oregon us-west-2 | $0.8568 | – | $0.5668 | $0.3886 | |
| Canada Central ca-central-1 | $0.9384 | – | $0.6222 | $0.4241 | |
| São Paulo sa-east-1 | $1.36 | – | $0.9036 | $0.6196 | |
| Ireland eu-west-1 | $0.9588 | – | $0.6342 | $0.4349 | |
| London eu-west-2 | $1.01 | – | $0.6672 | $0.4550 | |
| Frankfurt eu-central-1 | $1.03 | – | $0.6837 | $0.4688 | |
| Mumbai ap-south-1 | $0.6006 | – | $0.3947 | $0.2725 | |
| Singapore ap-southeast-1 | $1.03 | – | $0.6837 | $0.4687 | |
| Sydney ap-southeast-2 | $1.03 | – | $0.6785 | $0.4666 | |
| Tokyo ap-northeast-1 | $1.03 | – | $0.6837 | $0.4688 |
Shared tenancy, no pre-installed software. Reserved rates are standard, no upfront, per hour. Prices as of 2026-11-04.
Same shape, other types
| Type | vCPU | Memory | $/hour | vs r7g.4xlarge |
|---|---|---|---|---|
| r6g.4xlarge AWS Graviton2 Processor | 16 | 128 GiB | $0.8064 | -6% |
| r5a.4xlarge AMD EPYC 7571 | 16 | 128 GiB | $0.9040 | +6% |
| r6a.4xlarge AMD EPYC 7R13 Processor | 16 | 128 GiB | $0.9072 | +6% |
| r6gd.4xlarge AWS Graviton2 Processor | 16 | 128 GiB | $0.9216 | +8% |
| r8g.4xlarge AWS Graviton4 Processor | 16 | 128 GiB | $0.9426 | +10% |
| r6i.4xlarge Intel Xeon 8375C (Ice Lake) | 16 | 128 GiB | $1.01 | +18% |
Cost calculator
Specs
| vCPU | 16 |
|---|---|
| Memory | 128 GiB (8.0 per vCPU) |
| Processor | AWS Graviton3 Processor |
| Clock | 2.5 GHz |
| Storage | EBS only |
| Network | Up to 15 Gigabit |
r7g sizes
| r7g.medium | 1 vCPU | $0.0536 |
| r7g.large | 2 vCPU | $0.1071 |
| r7g.xlarge | 4 vCPU | $0.2142 |
| r7g.2xlarge | 8 vCPU | $0.4284 |
| r7g.4xlarge | 16 vCPU | $0.8568 |
| r7g.8xlarge | 32 vCPU | $1.71 |
| r7g.12xlarge | 48 vCPU | $2.57 |
| r7g.16xlarge | 64 vCPU | $3.43 |