c5d.18xlarge
Compute optimized · c5d series · Intel Xeon Platinum 8124M
- vCPU
- 72
- Memory
- 144 GiB
- Linux / hour
- $3.46
- Per month
- $2,523
- Per vCPU-hour
- $0.0480
- Per GiB-hour
- $0.0240
Analysis
The c5d.18xlarge is a compute optimized instance in the c5d series with 72 vCPUs and 144 GiB of memory on Intel Xeon Platinum 8124M (up to 3.4 GHz), which makes it compute-heavy at 2 GiB of memory per vCPU.
Within the same generation and size, the c5.18xlarge on Intel Xeon Platinum 8124M costs $3.06/hour, 11% less ($289 a month). The other variants are the c5n.18xlarge at $3.89.
Running it in N. Virginia instead of São Paulo saves $1,393 a month per instance: $3.46/hour against $5.36/hour, a 55% spread.
Reserving it for a year with no upfront payment cuts the Linux rate to $2.18/hour, which beats on demand once it runs more than 63% of the time; three years brings it to $1.45/hour, 58% below on demand. Windows Server roughly doubles the bill at $6.77/hour, because the licence is charged per vCPU.
It has local instance storage (2 x 900 GB NVMe SSD), which is fast but lost when the instance stops. Network: 25 Gigabit.
On demand it costs $3.46/hour in US East (N. Virginia), $2,523 a month if left running, which puts it mid-table for compute optimized types at the 50th percentile per vCPU ($0.0480 per vCPU-hour) and the 54th percentile per GiB ($0.0240 per GiB-hour).
Price by region (USD per hour)
| Region | Linux | Windows | 1-yr RI | 3-yr RI | |
|---|---|---|---|---|---|
| N. Virginia us-east-1 | $3.46 | $6.77 | $2.18 | $1.45 | |
| Ohio us-east-2 | $3.46 | $6.77 | $2.18 | $1.44 | |
| Oregon us-west-2 | $3.46 | $6.77 | $2.18 | $1.45 | |
| Canada Central ca-central-1 | $3.82 | $7.13 | $2.40 | $1.60 | |
| São Paulo sa-east-1 | $5.36 | $8.68 | $3.38 | $2.32 | |
| Ireland eu-west-1 | $3.92 | $7.24 | $2.47 | $1.70 | |
| London eu-west-2 | $4.14 | $7.45 | $2.61 | $1.79 | |
| Frankfurt eu-central-1 | $4.00 | $7.31 | $2.52 | $1.73 | |
| Mumbai ap-south-1 | $3.56 | $6.88 | $2.25 | $1.54 | |
| Singapore ap-southeast-1 | $4.03 | $7.34 | $2.54 | $1.74 | |
| Sydney ap-southeast-2 | $4.54 | $7.85 | $2.86 | $1.96 | |
| Tokyo ap-northeast-1 | $4.39 | $7.70 | $2.77 | $1.90 |
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 c5d.18xlarge |
|---|---|---|---|---|
| c5.18xlarge Intel Xeon Platinum 8124M | 72 | 144 GiB | $3.06 | -11% |
Cost calculator
Specs
| vCPU | 72 |
|---|---|
| Memory | 144 GiB (2.0 per vCPU) |
| Processor | Intel Xeon Platinum 8124M |
| Clock | 3.4 GHz |
| Storage | 2 x 900 NVMe SSD |
| Network | 25 Gigabit |
c5d sizes
| c5d.large | 2 vCPU | $0.0960 |
| c5d.xlarge | 4 vCPU | $0.1920 |
| c5d.2xlarge | 8 vCPU | $0.3840 |
| c5d.4xlarge | 16 vCPU | $0.7680 |
| c5d.9xlarge | 36 vCPU | $1.73 |
| c5d.12xlarge | 48 vCPU | $2.30 |
| c5d.18xlarge | 72 vCPU | $3.46 |
| c5d.24xlarge | 96 vCPU | $4.61 |