c5.12xlargevsc5a.12xlarge
c5a.12xlarge is 9% cheaper than c5.12xlarge on demand in US East (N. Virginia), saving $140.16 a month.
| At a glance | c5.12xlarge | c5a.12xlarge |
|---|---|---|
| On-demand | $2.04/hr | $1.848/hr9% less |
| Lowest rate | $0.5758/hr0% lessSpot, can be interrupted | $0.5765/hrSpot, can be interrupted |
| Size | 48 vCPUs, 96 GiB | 48 vCPUs, 96 GiB |
| Processor | Intel Xeon Platinum 8275L | AMD EPYC 7R32 |
| 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 | c5.12xlarge | c5a.12xlarge | c5a.12xlarge vs c5.12xlarge |
|---|---|---|---|
| On-demandPay by the hour | $2.04 | $1.848 | ▼ 9% |
| SpotCan be interrupted | 72% off$0.5758 | 69% off$0.5765 | Same |
| 1-yr reservedNo upfront | 37% off$1.285 | 37% off$1.164 | ▼ 9% |
| 3-yr reservedNo upfront | 58% off$0.855 | 57% off$0.798 | ▼ 7% |
| 1-yr savings planHourly commitment | 28% off$1.478 | 27% off$1.343 | ▼ 9% |
| 3-yr savings planHourly commitment | 52% off$0.985 | 52% off$0.892 | ▼ 9% |
Key differences
The biggest lead each one has.
Where c5.12xlarge leads
EBS baseline bandwidth9,500 Mbps vs 4,750 Mbps
2× higherSustained clock3.6 GHz vs 3.3 GHz
9% higherWhere c5a.12xlarge leads
On-demand price$1.848 vs $2.04 per hour
9% cheaperSpecs
15 of 41 specs differ. Those are in bold.
| Compute6 of 11 differ | c5.12xlarge | c5a.12xlarge |
|---|---|---|
| vCPUs | 48 | 48 |
| Physical cores | 24 | 24 |
| Threads per core | 2 | 2 |
| Architecture | x86_64 | x86_64 |
| Processor | Intel Xeon Platinum 8275L | AMD EPYC 7R32 |
| CPU maker | Intel | AMD |
| Clock speed | 3.4 GHz | 3.3 GHz |
| Sustained clock | 3.6 GHz | 3.3 GHz |
| Processor features | Intel AVX; Intel AVX2; Intel AVX512; Intel Deep Learning Boost; Intel Turbo | AMD Turbo; AVX; AVX2 |
| Burstable | No | No |
| ECU | 188 | – |
| MemoryAll 1 match | c5.12xlarge | c5a.12xlarge |
|---|---|---|
| Memory (GiB) | 96 | 96 |
| NetworkingAll 8 match | c5.12xlarge | c5a.12xlarge |
|---|---|---|
| Network | 12 Gigabit | 12 Gigabit |
| Network baseline | 12 Gbps | 12 Gbps |
| Network peak | 12 Gbps | 12 Gbps |
| Enhanced networking | Yes (ENA) | Yes (ENA) |
| EFA | No | No |
| IPv6 | Yes | Yes |
| Max network interfaces | 8 | 8 |
| IPv4 addresses per interface | 30 | 30 |
| Storage7 of 11 differ | c5.12xlarge | c5a.12xlarge |
|---|---|---|
| Storage | EBS only | EBS only |
| EBS optimized | Yes | Yes |
| EBS over NVMe | Required | Required |
| EBS throughput | 7000 Mbps | 4750 Mbps |
| EBS baseline bandwidth | 9,500 Mbps | 4,750 Mbps |
| EBS max bandwidth | 9,500 Mbps | 4,750 Mbps |
| EBS baseline throughput | 1,187.5 MB/s | 593.75 MB/s |
| EBS max throughput | 1,187.5 MB/s | 593.75 MB/s |
| EBS baseline IOPS | 40,000 | 20,000 |
| EBS max IOPS | 40,000 | 20,000 |
| Max EBS volumes | 27 | 27 |
| Instance details2 of 10 differ | c5.12xlarge | c5a.12xlarge |
|---|---|---|
| Family | c5 | c5a |
| Category | Compute optimized | Compute optimized |
| Current generation | Yes | Yes |
| Normalization factor | 96 | 96 |
| Bare metal | No | No |
| Hypervisor | Nitro | Nitro |
| Placement groups | Cluster, Partition, Spread | Cluster, Partition, Spread |
| Hibernation | Yes | No |
| Nitro Enclaves | Yes | Yes |
| Boot modes | Legacy BIOS, UEFI | Legacy BIOS, UEFI |
On-demand prices by region
Cheapest for c5.12xlarge first. Linux, USD per hour.
| Region | c5.12xlarge | c5a.12xlarge | Difference |
|---|---|---|---|
| Asia Pacific (Mumbai)ap-south-1 | $2.04 | $1.128 | ▼ 45% |
| US East (N. Virginia)Used in summaryus-east-1 | $2.04 | $1.848 | ▼ 9% |
| US East (Ohio)us-east-2 | $2.04 | $1.848 | ▼ 9% |
| US West (Oregon)us-west-2 | $2.04 | $1.848 | ▼ 9% |
| EU (Stockholm)eu-north-1 | $2.184 | $1.968 | ▼ 10% |
| Canada (Central)ca-central-1 | $2.232 | $2.016 | ▼ 10% |
| Asia Pacific (Seoul)ap-northeast-2 | $2.304 | $2.064 | ▼ 10% |
| EU (Ireland)eu-west-1 | $2.304 | $2.064 | ▼ 10% |
| EU (Frankfurt)eu-central-1 | $2.328 | $2.088 | ▼ 10% |
| Asia Pacific (Singapore)ap-southeast-1 | $2.352 | $2.112 | ▼ 10% |
| EU (London)eu-west-2 | $2.424 | $2.184 | ▼ 10% |
| EU (Milan)eu-south-1 | $2.424 | $2.184 | ▼ 10% |
| EU (Paris)eu-west-3 | $2.424 | $2.184 | ▼ 10% |
| AWS GovCloud (US-East)us-gov-east-1 | $2.448 | $2.208 | ▼ 10% |
| AWS GovCloud (US-West)us-gov-west-1 | $2.448 | $2.208 | ▼ 10% |
| Middle East (Bahrain)me-south-1 | $2.534 | $2.28 | ▼ 10% |
| US West (N. California)us-west-1 | $2.544 | $2.28 | ▼ 10% |
| Asia Pacific (Tokyo)ap-northeast-1 | $2.568 | $2.304 | ▼ 10% |
| Asia Pacific (Hong Kong)ap-east-1 | $2.592 | $2.328 | ▼ 10% |
| Asia Pacific (Sydney)ap-southeast-2 | $2.664 | $2.40 | ▼ 10% |
| Africa (Cape Town)af-south-1 | $2.736 | $2.472 | ▼ 10% |
| South America (Sao Paulo)sa-east-1 | $3.144 | $2.832 | ▼ 10% |
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.