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The r5b.8xlarge is a memory optimised instance in the r5b family with 32 vCPU and 256 GiB of memory on Intel Xeon Platinum 8259 (Cascade Lake). It costs $1,740.32 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 $37,683 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.
2,240.9g CO₂ an hour in us-east-1
1,635.9 kg a month. Grid 322 g per kWh.
Lowest-carbon regions for this type. The dirtiest emits 99× the cleanest.
| $1,740.32 | $896.88 | 48% | 1,423 | |
| $1,740.32 | $508.15 | 71% | 3,304 | |
| $1,740.32 | $693.57 | 60% | 2,241 | |
| $1,844.74 | $184.47 | 90% | 56 | |
| $1,903.84 | $452.16 | 76% | 904 | |
| $1,950.56 | $767.74 | 61% | 2,196 | |
| $2,044.00 | $341.57 | 83% | 1,620 | |
| $2,044.00 | $611.52 | 70% | 1,585 |
curl "https://prices.cloudadapt.io/api/v1/compute/aws/r5b.8xlarge?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