The r5a.4xlarge is a memory optimised instance in the r5a family with 16 vCPU and 128 GiB of memory on AMD EPYC 7571. It costs $659.92 a month on-demand in us-east-1 (N. Virginia) and is offered in 16 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 $14,168 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.
539.6g CO₂ an hour in us-east-1
393.9 kg a month. Grid 322 g per kWh.
Lowest-carbon regions for this type. The dirtiest emits 15× the cleanest.
| $417.56 | $189.00 | 55% | 1,185 | |
| $659.92 | $288.13 | 56% | 343 | |
| $659.92 | $266.38 | 60% | 540 | |
| $659.92 | $230.90 | 65% | 796 | |
| $724.16 | $276.45 | 62% | 218 | |
| $735.84 | $210.90 | 71% | 334 | |
| $741.68 | $321.49 | 57% | 529 | |
| $776.72 | $290.76 | 63% | 382 |
curl "https://prices.cloudadapt.io/api/v1/compute/aws/r5a.4xlarge?region=us-east-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