c5a.24xlargevsr5a.24xlarge
c5a.24xlarge is 32% cheaper than r5a.24xlarge on demand in US East (N. Virginia), saving $1,261.44 a month.
| At a glance | c5a.24xlarge | r5a.24xlarge |
|---|---|---|
| On-demand | $3.696/hr32% less | $5.424/hr |
| Lowest rate | $0.9585/hr38% lessSpot, can be interrupted | $1.538/hrSpot, can be interrupted |
| Size | 96 vCPUs, 192 GiB | 96 vCPUs, 768 GiB |
| Processor | AMD EPYC 7R32 | AMD EPYC 7571 |
| Architecture | x86_64 | x86_64 |
Prices in US East (N. Virginia)
“Off” is the discount against each type’s own on-demand price. Linux, USD per hour.
| Option | c5a.24xlarge | r5a.24xlarge | r5a.24xlarge vs c5a.24xlarge |
|---|---|---|---|
| On-demandPay by the hour | $3.696 | $5.424 | ▲ 47% |
| SpotCan be interrupted | 74% off$0.9585 | 72% off$1.538 | ▲ 60% |
| 1-yr reservedNo upfront | 37% off$2.328 | 37% off$3.417 | ▲ 47% |
| 3-yr reservedNo upfront | 57% off$1.597 | 57% off$2.343 | ▲ 47% |
| 1-yr savings planHourly commitment | 27% off$2.686 | 27% off$3.941 | ▲ 47% |
| 3-yr savings planHourly commitment | 52% off$1.784 | 48% off$2.829 | ▲ 59% |
Key differences
The biggest lead each one has.
Where c5a.24xlarge leads
On-demand price$3.696 vs $5.424 per hour
32% cheaperClock speed3.3 GHz vs 2.5 GHz
32% higherWhere r5a.24xlarge leads
Memory (GiB)768 vs 192
4× higherEBS baseline IOPS60,000 vs 40,000
50% higherSpecs
14 of 40 specs differ. Those are in bold.
| Compute4 of 10 differ | c5a.24xlarge | r5a.24xlarge |
|---|---|---|
| vCPUs | 96 | 96 |
| Physical cores | 48 | 48 |
| Threads per core | 2 | 2 |
| Architecture | x86_64 | x86_64 |
| Processor | AMD EPYC 7R32 | AMD EPYC 7571 |
| CPU maker | AMD | AMD |
| Clock speed | 3.3 GHz | 2.5 GHz |
| Sustained clock | 3.3 GHz | 2.5 GHz |
| Processor features | AMD Turbo; AVX; AVX2 | AVX; AVX2; AMD Turbo |
| Burstable | No | No |
| Memory1 of 1 differ | c5a.24xlarge | r5a.24xlarge |
|---|---|---|
| Memory (GiB) | 192 | 768 |
| NetworkingAll 8 match | c5a.24xlarge | r5a.24xlarge |
|---|---|---|
| Network | 20 Gigabit | 20 Gigabit |
| Network baseline | 20 Gbps | 20 Gbps |
| Network peak | 20 Gbps | 20 Gbps |
| Enhanced networking | Yes (ENA) | Yes (ENA) |
| EFA | No | No |
| IPv6 | Yes | Yes |
| Max network interfaces | 15 | 15 |
| IPv4 addresses per interface | 50 | 50 |
| Storage7 of 11 differ | c5a.24xlarge | r5a.24xlarge |
|---|---|---|
| Storage | EBS only | EBS only |
| EBS optimized | Yes | Yes |
| EBS over NVMe | Required | Required |
| EBS throughput | 9500 Mbps | 10000 Mbps |
| EBS baseline bandwidth | 9,500 Mbps | 13,570 Mbps |
| EBS max bandwidth | 9,500 Mbps | 13,570 Mbps |
| EBS baseline throughput | 1,187.5 MB/s | 1,696.25 MB/s |
| EBS max throughput | 1,187.5 MB/s | 1,696.25 MB/s |
| EBS baseline IOPS | 40,000 | 60,000 |
| EBS max IOPS | 40,000 | 60,000 |
| Max EBS volumes | 27 | 27 |
| Instance details2 of 10 differ | c5a.24xlarge | r5a.24xlarge |
|---|---|---|
| Family | c5a | r5a |
| Category | Compute optimized | Memory optimized |
| Current generation | Yes | Yes |
| Normalization factor | 192 | 192 |
| Bare metal | No | No |
| Hypervisor | Nitro | Nitro |
| Placement groups | Cluster, Partition, Spread | Cluster, Partition, Spread |
| Hibernation | No | No |
| Nitro Enclaves | Yes | Yes |
| Boot modes | Legacy BIOS, UEFI | Legacy BIOS, UEFI |
On-demand prices by region
Cheapest for c5a.24xlarge first. Linux, USD per hour.
| Region | c5a.24xlarge | r5a.24xlarge | Difference |
|---|---|---|---|
| Asia Pacific (Mumbai)ap-south-1 | $2.256 | $3.432 | ▲ 52% |
| US East (N. Virginia)Used in summaryus-east-1 | $3.696 | $5.424 | ▲ 47% |
| US East (Ohio)us-east-2 | $3.696 | $5.424 | ▲ 47% |
| US West (Oregon)us-west-2 | $3.696 | $5.424 | ▲ 47% |
| Canada (Central)ca-central-1 | $4.032 | $5.952 | ▲ 48% |
| Asia Pacific (Seoul)ap-northeast-2 | $4.128 | $6.528 | ▲ 58% |
| EU (Ireland)eu-west-1 | $4.128 | $6.096 | ▲ 48% |
| EU (Frankfurt)eu-central-1 | $4.176 | $6.576 | ▲ 57% |
| Asia Pacific (Singapore)ap-southeast-1 | $4.224 | $6.528 | ▲ 55% |
| EU (London)eu-west-2 | $4.368 | $6.384 | ▲ 46% |
| EU (Milan)eu-south-1 | $4.368 | $6.384 | ▲ 46% |
| EU (Paris)eu-west-3 | $4.368 | $6.384 | ▲ 46% |
| AWS GovCloud (US-East)us-gov-east-1 | $4.416 | $6.528 | ▲ 48% |
| AWS GovCloud (US-West)us-gov-west-1 | $4.416 | $6.528 | ▲ 48% |
| US West (N. California)us-west-1 | $4.56 | $6.048 | ▲ 33% |
| Asia Pacific (Tokyo)ap-northeast-1 | $4.608 | $6.576 | ▲ 43% |
| Asia Pacific (Sydney)ap-southeast-2 | $4.80 | $6.528 | ▲ 36% |
| South America (Sao Paulo)sa-east-1 | $5.664 | $8.688 | ▲ 53% |
Keep exploring
Each type’s own page, and how it compares with others.
AWS EC2 Linux prices in USD. Monthly figures use 730 hours. Prices last updated 12 Nov 2026.