c8a.24xlargevsc8i.24xlarge
c8i.24xlarge is 13% cheaper than c8a.24xlarge on demand in US East (N. Virginia), saving $492.68 a month.
| At a glance | c8a.24xlarge | c8i.24xlarge |
|---|---|---|
| On-demand | $5.173/hr | $4.498/hr13% less |
| Lowest rate | $1.079/hr16% lessSpot, can be interrupted | $1.281/hrSpot, can be interrupted |
| Size | 96 vCPUs, 192 GiB | 96 vCPUs, 192 GiB |
| Processor | AMD EPYC 9R45 Processor | Intel Xeon Scalable (Granite Rapids) |
| 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 | c8a.24xlarge | c8i.24xlarge | c8i.24xlarge vs c8a.24xlarge |
|---|---|---|---|
| On-demandPay by the hour | $5.173 | $4.498 | ▼ 13% |
| SpotCan be interrupted | 79% off$1.079 | 72% off$1.281 | ▲ 19% |
| 1-yr savings planHourly commitment | 28% off$3.738 | 28% off$3.251 | ▼ 13% |
| 3-yr savings planHourly commitment | 52% off$2.498 | 52% off$2.172 | ▼ 13% |
Key differences
The biggest lead each one has.
Where c8a.24xlarge leads
Physical cores96 vs 48
2× higherWhere c8i.24xlarge leads
On-demand price$4.498 vs $5.173 per hour
13% cheaperSpecs
8 of 40 specs differ. Those are in bold.
| Compute7 of 10 differ | c8a.24xlarge | c8i.24xlarge |
|---|---|---|
| vCPUs | 96 | 96 |
| Physical cores | 96 | 48 |
| Threads per core | 1 | 2 |
| Architecture | x86_64 | x86_64 |
| Processor | AMD EPYC 9R45 Processor | Intel Xeon Scalable (Granite Rapids) |
| CPU maker | AMD | Intel |
| Clock speed | Up to 4.5 GHz | 3.9 GHz |
| Sustained clock | 4.5 GHz | 3.9 GHz |
| Processor features | AMD Turbo; AVX; AVX2; AVX512 | Intel AVX; Intel AVX2; Intel AVX512; Intel Turbo; Intel AMX |
| Burstable | No | No |
| MemoryAll 1 match | c8a.24xlarge | c8i.24xlarge |
|---|---|---|
| Memory (GiB) | 192 | 192 |
| NetworkingAll 8 match | c8a.24xlarge | c8i.24xlarge |
|---|---|---|
| Network | 40000 Megabit | 40000 Megabit |
| Network baseline | 40 Gbps | 40 Gbps |
| Network peak | 40 Gbps | 40 Gbps |
| Enhanced networking | Yes (ENA) | Yes (ENA) |
| EFA | No | No |
| IPv6 | Yes | Yes |
| Max network interfaces | 16 | 16 |
| IPv4 addresses per interface | 64 | 64 |
| StorageAll 11 match | c8a.24xlarge | c8i.24xlarge |
|---|---|---|
| Storage | EBS only | EBS only |
| EBS optimized | Yes | Yes |
| EBS over NVMe | Required | Required |
| EBS throughput | 30000 Mbps | 30000 Mbps |
| EBS baseline bandwidth | 30,000 Mbps | 30,000 Mbps |
| EBS max bandwidth | 30,000 Mbps | 30,000 Mbps |
| EBS baseline throughput | 3,750 MB/s | 3,750 MB/s |
| EBS max throughput | 3,750 MB/s | 3,750 MB/s |
| EBS baseline IOPS | 120,000 | 120,000 |
| EBS max IOPS | 120,000 | 120,000 |
| Max EBS volumes | 64 | 64 |
| Instance details1 of 10 differ | c8a.24xlarge | c8i.24xlarge |
|---|---|---|
| Family | c8a | c8i |
| Category | Compute optimized | Compute 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 c8a.24xlarge first. Linux, USD per hour.
| Region | c8a.24xlarge | c8i.24xlarge | Difference |
|---|---|---|---|
| US East (N. Virginia)Used in summaryus-east-1 | $5.173 | $4.498 | ▼ 13% |
| US East (Ohio)us-east-2 | $5.173 | $4.498 | ▼ 13% |
| US West (Oregon)us-west-2 | $5.173 | $4.498 | ▼ 13% |
| Europe (Spain)eu-south-2 | $5.549 | $4.826 | ▼ 13% |
| EU (Ireland)eu-west-1 | $5.55 | $4.826 | ▼ 13% |
| EU (Frankfurt)eu-central-1 | $5.904 | $5.133 | ▼ 13% |
| Asia Pacific (Tokyo)ap-northeast-1 | $6.512 | $5.663 | ▼ 13% |
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.