r8gd.12xlarge
Memory optimized · r8gd series · AWS Graviton4 Processor
- vCPU
- 48
- Memory
- 384 GiB
- Linux / hour
- $3.53
- Per month
- $2,575
- Per vCPU-hour
- $0.0735
- Per GiB-hour
- $0.00919
Analysis
The r8gd.12xlarge is a memory optimized instance in the r8gd series with 48 vCPUs and 384 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.12xlarge on AWS Graviton4 costs $2.83/hour, 20% less ($511 a month). The other variants are the r8i-flex.12xlarge at $3.17, the r8i.12xlarge at $3.33 and the r8a.12xlarge at $3.83.
Running it in Mumbai instead of São Paulo saves $2,412 a month per instance: $2.28/hour against $5.58/hour, a 145% spread.
Compared with the previous generation, it costs 8.0% more than the r7gd.12xlarge on AWS Graviton3 ($191 more a month per instance), in exchange for the newer processor. The newer r9gd.12xlarge on AWS Graviton5 is 9.0% dearer at $3.84/hour.
On demand it costs $3.53/hour in US East (N. Virginia), $2,575 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 (3 x 950 GB NVMe SSD), which is fast but lost when the instance stops. Network: 22500 Megabit.
Looking beyond its own line, 15 of 40 current types with 48 vCPUs and similar memory are cheaper. The cheapest of those is the r6g.12xlarge on AWS Graviton2 at $2.42/hour.
Price by region (USD per hour)
| Region | Linux | Windows | 1-yr RI | 3-yr RI | |
|---|---|---|---|---|---|
| N. Virginia us-east-1 | $3.53 | – | – | – | |
| Ohio us-east-2 | $3.53 | – | – | – | |
| Oregon us-west-2 | $3.53 | – | – | – | |
| Canada Central ca-central-1 | $3.87 | – | – | – | |
| São Paulo sa-east-1 | $5.58 | – | – | – | |
| Ireland eu-west-1 | $3.92 | – | – | – | |
| London eu-west-2 | $4.14 | – | – | – | |
| Frankfurt eu-central-1 | $4.24 | – | – | – | |
| Mumbai ap-south-1 | $2.28 | – | – | – | |
| Singapore ap-southeast-1 | $4.26 | – | – | – | |
| Sydney ap-southeast-2 | $4.06 | – | – | – | |
| Tokyo ap-northeast-1 | $4.26 | – | – | – |
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.12xlarge |
|---|---|---|---|---|
| r6g.12xlarge AWS Graviton2 Processor | 48 | 384 GiB | $2.42 | -31% |
| r7g.12xlarge AWS Graviton3 Processor | 48 | 384 GiB | $2.57 | -27% |
| r5a.12xlarge AMD EPYC 7571 | 48 | 384 GiB | $2.71 | -23% |
| r6a.12xlarge AMD EPYC 7R13 Processor | 48 | 384 GiB | $2.72 | -23% |
| r6gd.12xlarge AWS Graviton2 Processor | 48 | 384 GiB | $2.76 | -22% |
| r8g.12xlarge AWS Graviton4 Processor | 48 | 384 GiB | $2.83 | -20% |
Cost calculator
Specs
| vCPU | 48 |
|---|---|
| Memory | 384 GiB (8.0 per vCPU) |
| Processor | AWS Graviton4 Processor |
| Clock | 2.7 GHz |
| Storage | 3 x 950 NVMe SSD |
| Network | 22500 Megabit |
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 |