r5.8xlargevsr5a.8xlarge
r5a.8xlarge is 10% cheaper than r5.8xlarge on demand in US East (N. Virginia), saving $151.84 a month.
| At a glance | r5.8xlarge | r5a.8xlarge |
|---|---|---|
| On-demand | $2.016/hr | $1.808/hr10% less |
| Lowest rate | $0.421/hr19% lessSpot, can be interrupted | $0.5214/hrSpot, can be interrupted |
| Size | 32 vCPUs, 256 GiB | 32 vCPUs, 256 GiB |
| Processor | Intel Xeon Platinum 8175 | 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 | r5.8xlarge | r5a.8xlarge | r5a.8xlarge vs r5.8xlarge |
|---|---|---|---|
| On-demandPay by the hour | $2.016 | $1.808 | ▼ 10% |
| SpotCan be interrupted | 79% off$0.421 | 71% off$0.5214 | ▲ 24% |
| 1-yr reservedNo upfront | 37% off$1.27 | 37% off$1.139 | ▼ 10% |
| 3-yr reservedNo upfront | 57% off$0.871 | 57% off$0.781 | ▼ 10% |
| 1-yr savings planHourly commitment | 28% off$1.461 | 27% off$1.314 | ▼ 10% |
| 3-yr savings planHourly commitment | 48% off$1.052 | 48% off$0.943 | ▼ 10% |
Key differences
The biggest lead each one has.
Where r5.8xlarge leads
EBS baseline IOPS30,000 vs 20,000
50% higherNetwork baseline10 Gbps vs 7.5 Gbps
33% higherClock speed3.1 GHz vs 2.5 GHz
24% higherWhere r5a.8xlarge leads
On-demand price$1.808 vs $2.016 per hour
10% cheaperSpecs
16 of 41 specs differ. Those are in bold.
| Compute6 of 11 differ | r5.8xlarge | r5a.8xlarge |
|---|---|---|
| vCPUs | 32 | 32 |
| Physical cores | 16 | 16 |
| Threads per core | 2 | 2 |
| Architecture | x86_64 | x86_64 |
| Processor | Intel Xeon Platinum 8175 | AMD EPYC 7571 |
| CPU maker | Intel | AMD |
| Clock speed | 3.1 GHz | 2.5 GHz |
| Sustained clock | 3.1 GHz | 2.5 GHz |
| Processor features | Intel AVX; Intel AVX2; Intel AVX512; Intel Turbo | AVX; AVX2; AMD Turbo |
| Burstable | No | No |
| ECU | 128 | – |
| MemoryAll 1 match | r5.8xlarge | r5a.8xlarge |
|---|---|---|
| Memory (GiB) | 256 | 256 |
| Networking2 of 8 differ | r5.8xlarge | r5a.8xlarge |
|---|---|---|
| Network | 10 Gigabit | Up to 10 Gigabit |
| Network baseline | 10 Gbps | 7.5 Gbps |
| Network peak | 10 Gbps | 10 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 | r5.8xlarge | r5a.8xlarge |
|---|---|---|
| Storage | EBS only | EBS only |
| EBS optimized | Yes | Yes |
| EBS over NVMe | Required | Required |
| EBS throughput | 6800 Mbps | 3500 Mbps |
| EBS baseline bandwidth | 6,800 Mbps | 4,750 Mbps |
| EBS max bandwidth | 6,800 Mbps | 4,750 Mbps |
| EBS baseline throughput | 850 MB/s | 593.75 MB/s |
| EBS max throughput | 850 MB/s | 593.75 MB/s |
| EBS baseline IOPS | 30,000 | 20,000 |
| EBS max IOPS | 30,000 | 20,000 |
| Max EBS volumes | 27 | 27 |
| Instance details1 of 10 differ | r5.8xlarge | r5a.8xlarge |
|---|---|---|
| Family | r5 | r5a |
| Category | Memory optimized | Memory optimized |
| Current generation | Yes | Yes |
| Normalization factor | 64 | 64 |
| 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 r5.8xlarge first. Linux, USD per hour.
| Region | r5.8xlarge | r5a.8xlarge | Difference |
|---|---|---|---|
| US East (N. Virginia)Used in summaryus-east-1 | $2.016 | $1.808 | ▼ 10% |
| US East (Ohio)us-east-2 | $2.016 | $1.808 | ▼ 10% |
| US West (Oregon)us-west-2 | $2.016 | $1.808 | ▼ 10% |
| Asia Pacific (Mumbai)ap-south-1 | $2.08 | $1.144 | ▼ 45% |
| Canada (Central)ca-central-1 | $2.208 | $1.984 | ▼ 10% |
| US West (N. California)us-west-1 | $2.24 | $2.016 | ▼ 10% |
| EU (Ireland)eu-west-1 | $2.256 | $2.032 | ▼ 10% |
| EU (London)eu-west-2 | $2.368 | $2.128 | ▼ 10% |
| EU (Milan)eu-south-1 | $2.368 | $2.128 | ▼ 10% |
| EU (Paris)eu-west-3 | $2.368 | $2.128 | ▼ 10% |
| Asia Pacific (Sydney)ap-southeast-2 | $2.416 | $2.176 | ▼ 10% |
| AWS GovCloud (US-East)us-gov-east-1 | $2.416 | $2.176 | ▼ 10% |
| AWS GovCloud (US-West)us-gov-west-1 | $2.416 | $2.176 | ▼ 10% |
| Asia Pacific (Seoul)ap-northeast-2 | $2.432 | $2.176 | ▼ 11% |
| Asia Pacific (Singapore)ap-southeast-1 | $2.432 | $2.176 | ▼ 11% |
| Asia Pacific (Tokyo)ap-northeast-1 | $2.432 | $2.192 | ▼ 10% |
| EU (Frankfurt)eu-central-1 | $2.432 | $2.192 | ▼ 10% |
| South America (Sao Paulo)sa-east-1 | $3.216 | $2.896 | ▼ 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.