r8g.16xlargevsr8i.16xlarge
r8g.16xlarge is 15% cheaper than r8i.16xlarge on demand in US East (N. Virginia), saving $492.90 a month. They use different processor architectures (arm64 and x86_64), so software built for one may need rebuilding to run on the other.
| At a glance | r8g.16xlarge | r8i.16xlarge |
|---|---|---|
| On-demand | $3.77/hr15% less | $4.445/hr |
| Lowest rate | $0.8157/hr9% lessSpot, can be interrupted | $0.8961/hrSpot, can be interrupted |
| Size | 64 vCPUs, 512 GiB | 64 vCPUs, 512 GiB |
| Processor | AWS Graviton4 Processor | Intel Xeon Scalable (Granite Rapids) |
| Architecture | arm64 | 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 | r8g.16xlarge | r8i.16xlarge | r8i.16xlarge vs r8g.16xlarge |
|---|---|---|---|
| On-demandPay by the hour | $3.77 | $4.445 | ▲ 18% |
| SpotCan be interrupted | 78% off$0.8157 | 80% off$0.8961 | ▲ 10% |
| 1-yr reservedNo upfront | 34% off$2.494 | — | — |
| 3-yr reservedNo upfront | 55% off$1.71 | — | — |
| 1-yr savings planHourly commitment | 28% off$2.732 | 28% off$3.221 | ▲ 18% |
| 3-yr savings planHourly commitment | 48% off$1.967 | 48% off$2.319 | ▲ 18% |
Key differences
The biggest lead each one has.
Where r8g.16xlarge leads
On-demand price$3.77 vs $4.445 per hour
15% cheaperPhysical cores64 vs 32
2× higherWhere r8i.16xlarge leads
Clock speed3.9 GHz vs 2.7 GHz
44% higherIPv4 addresses per interface64 vs 50
28% higherSpecs
13 of 40 specs differ. Those are in bold.
| Compute8 of 10 differ | r8g.16xlarge | r8i.16xlarge |
|---|---|---|
| vCPUs | 64 | 64 |
| Physical cores | 64 | 32 |
| Threads per core | 1 | 2 |
| Architecture | arm64 | x86_64 |
| Processor | AWS Graviton4 Processor | Intel Xeon Scalable (Granite Rapids) |
| CPU maker | AWS | Intel |
| Clock speed | 2.7 GHz | 3.9 GHz |
| Sustained clock | 2.8 GHz | 3.9 GHz |
| Processor features | – | Intel AVX; Intel AVX2; Intel AVX512; Intel Turbo; Intel AMX |
| Burstable | No | No |
| MemoryAll 1 match | r8g.16xlarge | r8i.16xlarge |
|---|---|---|
| Memory (GiB) | 512 | 512 |
| Networking3 of 8 differ | r8g.16xlarge | r8i.16xlarge |
|---|---|---|
| Network | 30 Gigabit | 30000 Megabit |
| Network baseline | 30 Gbps | 30 Gbps |
| Network peak | 30 Gbps | 30 Gbps |
| Enhanced networking | Yes (ENA) | Yes (ENA) |
| EFA | No | No |
| IPv6 | Yes | Yes |
| Max network interfaces | 15 | 16 |
| IPv4 addresses per interface | 50 | 64 |
| StorageAll 11 match | r8g.16xlarge | r8i.16xlarge |
|---|---|---|
| Storage | EBS only | EBS only |
| EBS optimized | Yes | Yes |
| EBS over NVMe | Required | Required |
| EBS throughput | 20000 Mbps | 20000 Mbps |
| EBS baseline bandwidth | 20,000 Mbps | 20,000 Mbps |
| EBS max bandwidth | 20,000 Mbps | 20,000 Mbps |
| EBS baseline throughput | 2,500 MB/s | 2,500 MB/s |
| EBS max throughput | 2,500 MB/s | 2,500 MB/s |
| EBS baseline IOPS | 80,000 | 80,000 |
| EBS max IOPS | 80,000 | 80,000 |
| Max EBS volumes | 48 | 48 |
| Instance details2 of 10 differ | r8g.16xlarge | r8i.16xlarge |
|---|---|---|
| Family | r8g | r8i |
| Category | Memory optimized | Memory optimized |
| Current generation | Yes | Yes |
| Normalization factor | 128 | 128 |
| Bare metal | No | No |
| Hypervisor | Nitro | Nitro |
| Placement groups | Cluster, Partition, Spread | Cluster, Partition, Spread |
| Hibernation | No | No |
| Nitro Enclaves | Yes | Yes |
| Boot modes | UEFI | Legacy BIOS, UEFI |
On-demand prices by region
Cheapest for r8g.16xlarge first. Linux, USD per hour.
| Region | r8g.16xlarge | r8i.16xlarge | Difference |
|---|---|---|---|
| Asia Pacific (Hyderabad)ap-south-2 | $2.643 | $4.587 | ▲ 74% |
| Asia Pacific (Mumbai)ap-south-1 | $2.643 | $4.587 | ▲ 74% |
| US East (N. Virginia)Used in summaryus-east-1 | $3.77 | $4.445 | ▲ 18% |
| US East (Ohio)us-east-2 | $3.77 | $4.445 | ▲ 18% |
| US West (Oregon)us-west-2 | $3.77 | $4.445 | ▲ 18% |
| Asia Pacific (Malaysia)ap-southeast-5 | $3.866 | $4.558 | ▲ 18% |
| EU (Stockholm)eu-north-1 | $4.009 | $4.728 | ▲ 18% |
| Canada (Central)ca-central-1 | $4.129 | $4.869 | ▲ 18% |
| Canada West (Calgary)ca-west-1 | $4.129 | $4.869 | ▲ 18% |
| US West (N. California)us-west-1 | $4.189 | $4.939 | ▲ 18% |
| Europe (Spain)eu-south-2 | $4.217 | $4.974 | ▲ 18% |
| EU (Ireland)eu-west-1 | $4.219 | $4.974 | ▲ 18% |
| EU (Milan)eu-south-1 | $4.418 | $5.221 | ▲ 18% |
| EU (London)eu-west-2 | $4.428 | $5.221 | ▲ 18% |
| EU (Paris)eu-west-3 | $4.428 | $5.221 | ▲ 18% |
| AWS GovCloud (US-West)us-gov-west-1 | $4.518 | $5.327 | ▲ 18% |
| Asia Pacific (Sydney)ap-southeast-2 | $4.518 | $5.327 | ▲ 18% |
| AWS GovCloud (US-East)us-gov-east-1 | $4.518 | $5.327 | ▲ 18% |
| Asia Pacific (Seoul)ap-northeast-2 | $4.548 | $5.363 | ▲ 18% |
| Asia Pacific (Singapore)ap-southeast-1 | $4.548 | $5.363 | ▲ 18% |
| Asia Pacific (Tokyo)ap-northeast-1 | $4.548 | $5.363 | ▲ 18% |
| EU (Frankfurt)eu-central-1 | $4.548 | $5.363 | ▲ 18% |
| Middle East (UAE)me-central-1 | $4.641 | $5.472 | ▲ 18% |
| Asia Pacific (New Zealand)ap-southeast-6 | $4.744 | $5.594 | ▲ 18% |
| Europe (Zurich)eu-central-2 | $5.003 | $5.899 | ▲ 18% |
| Africa (Cape Town)af-south-1 | $5.027 | $5.927 | ▲ 18% |
| South America (Sao Paulo)sa-east-1 | $5.999 | $7.091 | ▲ 18% |
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.