The r8g.4xlarge is a memory optimised instance in the r8g family with 16 vCPU and 128 GiB of memory on AWS Graviton4 (Arm). It costs $806.27 a month on-demand in eu-south-1 (Milan) and is offered in 31 regions.
The list price has not changed in this window. Spot moves with demand and is read every few minutes.
First year, 3 instances
Spot saves $23,838 a year
Reserved capacity is billed every hour of the month whether it runs or not. A 1-yr reservation is cheaper once these run more than 16 h a day.
Bars are on-demand per hour; the teal mark is spot. Price per vCPU is the same at every size, so pick the size that fits.
73.5g CO₂ an hour in eu-south-1
53.7 kg a month. Grid 233 g per kWh.
Lowest-carbon regions for this type. The dirtiest emits 116× the cleanest.
| $482.27 | $48.25 | 90% | 223 | |
| $482.27 | $173.67 | 64% | 223 | |
| $688.07 | $323.90 | 53% | 150 | |
| $688.07 | $202.36 | 71% | 102 | |
| $688.07 | $334.49 | 51% | 65 | |
| $705.47 | $192.43 | 73% | 38 | |
| $705.47 | $209.36 | 70% | 175 | |
| $722.41 | $91.83 | 87% | 139 |
curl "https://prices.cloudadapt.io/api/v1/compute/aws/r8g.4xlarge?region=eu-south-1"
List prices from AWS in US dollars, before discounts, credits and taxes. A month is 730 hours, a year 8,760. AWS pricing page