r8gd.4xlarge
Memory optimized · r8gd series · AWS Graviton4 Processor
- vCPU
- 16
- Memory
- 128 GiB
- Linux / hour
- $1.18
- Per month
- $858
- Per vCPU-hour
- $0.0735
- Per GiB-hour
- $0.00919
Analysis
The r8gd.4xlarge is a memory optimized instance in the r8gd series with 16 vCPUs and 128 GiB of memory on AWS Graviton4 (up to 2.7 GHz), which makes it memory-heavy at 8 GiB of memory per vCPU.
Within the same generation and size, the r8g.4xlarge on AWS Graviton4 costs $0.9426/hour, 20% less ($170 a month). The other variants are the r8i-flex.4xlarge at $1.06, the r8i.4xlarge at $1.11 and the r8a.4xlarge at $1.28.
Running it in Mumbai instead of São Paulo saves $804 a month per instance: $0.7603/hour against $1.86/hour, a 145% spread.
Compared with the previous generation, it costs 8.0% more than the r7gd.4xlarge on AWS Graviton3 ($63.57 more a month per instance), in exchange for the newer processor. The newer r9gd.4xlarge on AWS Graviton5 is 9.0% dearer at $1.28/hour.
On demand it costs $1.18/hour in US East (N. Virginia), $858 a month if left running, which puts it mid-table for memory optimized types at the 37th percentile per vCPU ($0.0735 per vCPU-hour) and the 53rd percentile per GiB ($0.00919 per GiB-hour).
It has local instance storage (1 x 950 GB NVMe SSD), which is fast but lost when the instance stops. Network: Up to 15 Gigabit.
Looking beyond its own line, 16 of 42 current types with 16 vCPUs and similar memory are cheaper. The cheapest of those is the r6g.4xlarge on AWS Graviton2 at $0.8064/hour.
Price by region (USD per hour)
| Region | Linux | Windows | 1-yr RI | 3-yr RI | |
|---|---|---|---|---|---|
| N. Virginia us-east-1 | $1.18 | – | – | – | |
| Ohio us-east-2 | $1.18 | – | – | – | |
| Oregon us-west-2 | $1.18 | – | – | – | |
| Canada Central ca-central-1 | $1.29 | – | – | – | |
| São Paulo sa-east-1 | $1.86 | – | – | – | |
| Ireland eu-west-1 | $1.31 | – | – | – | |
| London eu-west-2 | $1.38 | – | – | – | |
| Frankfurt eu-central-1 | $1.41 | – | – | – | |
| Mumbai ap-south-1 | $0.7603 | – | – | – | |
| Singapore ap-southeast-1 | $1.42 | – | – | – | |
| Sydney ap-southeast-2 | $1.35 | – | – | – | |
| Tokyo ap-northeast-1 | $1.42 | – | – | – |
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 r8gd.4xlarge |
|---|---|---|---|---|
| r6g.4xlarge AWS Graviton2 Processor | 16 | 128 GiB | $0.8064 | -31% |
| r7g.4xlarge AWS Graviton3 Processor | 16 | 128 GiB | $0.8568 | -27% |
| r5a.4xlarge AMD EPYC 7571 | 16 | 128 GiB | $0.9040 | -23% |
| r6a.4xlarge AMD EPYC 7R13 Processor | 16 | 128 GiB | $0.9072 | -23% |
| r6gd.4xlarge AWS Graviton2 Processor | 16 | 128 GiB | $0.9216 | -22% |
| r8g.4xlarge AWS Graviton4 Processor | 16 | 128 GiB | $0.9426 | -20% |
Cost calculator
Specs
| vCPU | 16 |
|---|---|
| Memory | 128 GiB (8.0 per vCPU) |
| Processor | AWS Graviton4 Processor |
| Clock | 2.7 GHz |
| Storage | 1 x 950 NVMe SSD |
| Network | Up to 15 Gigabit |
r8gd sizes
| r8gd.medium | 1 vCPU | $0.0735 |
| r8gd.large | 2 vCPU | $0.1470 |
| r8gd.xlarge | 4 vCPU | $0.2939 |
| r8gd.2xlarge | 8 vCPU | $0.5878 |
| r8gd.4xlarge | 16 vCPU | $1.18 |
| r8gd.8xlarge | 32 vCPU | $2.35 |
| r8gd.12xlarge | 48 vCPU | $3.53 |
| r8gd.16xlarge | 64 vCPU | $4.70 |
| r8gd.24xlarge | 96 vCPU | $7.05 |
| r8gd.48xlarge | 192 vCPU | $14.11 |