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The r5b.4xlarge is a memory optimised instance in the r5b family with 16 vCPU and 128 GiB of memory on Intel Xeon Platinum 8259 (Cascade Lake). It costs $870.16 a month on-demand in us-east-1 (N. Virginia) and is offered in 14 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 $18,969 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.
569.4g CO₂ an hour in us-east-1
415.7 kg a month. Grid 322 g per kWh.
Lowest-carbon regions for this type. The dirtiest emits 99× the cleanest.
| $870.16 | $265.65 | 69% | 840 | |
| $870.16 | $343.25 | 61% | 569 | |
| $870.16 | $334.49 | 62% | 361 | |
| $922.37 | $124.76 | 86% | 14 | |
| $951.92 | $321.35 | 66% | 230 | |
| $975.28 | $384.27 | 61% | 558 | |
| $1,022.00 | $197.83 | 81% | 412 | |
| $1,022.00 | $337.11 | 67% | 403 |
curl "https://prices.cloudadapt.io/api/v1/compute/aws/r5b.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