r8g.12xlargevsr8i.12xlarge
r8g.12xlarge is 15% cheaper than r8i.12xlarge on demand in US East (N. Virginia), saving $369.67 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.12xlarge | r8i.12xlarge |
|---|---|---|
| On-demand | $2.828/hr15% less | $3.334/hr |
| Lowest rate | $0.6649/hr11% lessSpot, can be interrupted | $0.7437/hrSpot, can be interrupted |
| Size | 48 vCPUs, 384 GiB | 48 vCPUs, 384 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.12xlarge | r8i.12xlarge | r8i.12xlarge vs r8g.12xlarge |
|---|---|---|---|
| On-demandPay by the hour | $2.828 | $3.334 | ▲ 18% |
| SpotCan be interrupted | 76% off$0.6649 | 78% off$0.7437 | ▲ 12% |
| 1-yr reservedNo upfront | 34% off$1.871 | — | — |
| 3-yr reservedNo upfront | 55% off$1.283 | — | — |
| 1-yr savings planHourly commitment | 28% off$2.049 | 28% off$2.416 | ▲ 18% |
| 3-yr savings planHourly commitment | 48% off$1.475 | 48% off$1.739 | ▲ 18% |
Key differences
The biggest lead each one has.
Where r8g.12xlarge leads
On-demand price$2.828 vs $3.334 per hour
15% cheaperPhysical cores48 vs 24
2× higherWhere r8i.12xlarge leads
IPv4 addresses per interface50 vs 30
67% higherClock speed3.9 GHz vs 2.7 GHz
44% higherSpecs
13 of 40 specs differ. Those are in bold.
| Compute8 of 10 differ | r8g.12xlarge | r8i.12xlarge |
|---|---|---|
| vCPUs | 48 | 48 |
| Physical cores | 48 | 24 |
| 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.12xlarge | r8i.12xlarge |
|---|---|---|
| Memory (GiB) | 384 | 384 |
| Networking3 of 8 differ | r8g.12xlarge | r8i.12xlarge |
|---|---|---|
| Network | 22.5 Gigabit | 22500 Megabit |
| Network baseline | 22.5 Gbps | 22.5 Gbps |
| Network peak | 22.5 Gbps | 22.5 Gbps |
| Enhanced networking | Yes (ENA) | Yes (ENA) |
| EFA | No | No |
| IPv6 | Yes | Yes |
| Max network interfaces | 8 | 12 |
| IPv4 addresses per interface | 30 | 50 |
| StorageAll 11 match | r8g.12xlarge | r8i.12xlarge |
|---|---|---|
| Storage | EBS only | EBS only |
| EBS optimized | Yes | Yes |
| EBS over NVMe | Required | Required |
| EBS throughput | 15000 Mbps | 15000 Mbps |
| EBS baseline bandwidth | 15,000 Mbps | 15,000 Mbps |
| EBS max bandwidth | 15,000 Mbps | 15,000 Mbps |
| EBS baseline throughput | 1,875 MB/s | 1,875 MB/s |
| EBS max throughput | 1,875 MB/s | 1,875 MB/s |
| EBS baseline IOPS | 60,000 | 60,000 |
| EBS max IOPS | 60,000 | 60,000 |
| Max EBS volumes | 32 | 32 |
| Instance details2 of 10 differ | r8g.12xlarge | r8i.12xlarge |
|---|---|---|
| Family | r8g | r8i |
| Category | Memory optimized | Memory 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 | No | No |
| Nitro Enclaves | Yes | Yes |
| Boot modes | UEFI | Legacy BIOS, UEFI |
On-demand prices by region
Cheapest for r8g.12xlarge first. Linux, USD per hour.
| Region | r8g.12xlarge | r8i.12xlarge | Difference |
|---|---|---|---|
| Asia Pacific (Hyderabad)ap-south-2 | $1.982 | $3.44 | ▲ 74% |
| Asia Pacific (Mumbai)ap-south-1 | $1.982 | $3.44 | ▲ 74% |
| US East (N. Virginia)Used in summaryus-east-1 | $2.828 | $3.334 | ▲ 18% |
| US East (Ohio)us-east-2 | $2.828 | $3.334 | ▲ 18% |
| US West (Oregon)us-west-2 | $2.828 | $3.334 | ▲ 18% |
| Asia Pacific (Malaysia)ap-southeast-5 | $2.899 | $3.419 | ▲ 18% |
| EU (Stockholm)eu-north-1 | $3.007 | $3.546 | ▲ 18% |
| Canada (Central)ca-central-1 | $3.097 | $3.652 | ▲ 18% |
| Canada West (Calgary)ca-west-1 | $3.097 | $3.652 | ▲ 18% |
| US West (N. California)us-west-1 | $3.142 | $3.704 | ▲ 18% |
| Europe (Spain)eu-south-2 | $3.163 | $3.731 | ▲ 18% |
| EU (Ireland)eu-west-1 | $3.164 | $3.731 | ▲ 18% |
| EU (Milan)eu-south-1 | $3.313 | $3.916 | ▲ 18% |
| EU (London)eu-west-2 | $3.321 | $3.916 | ▲ 18% |
| EU (Paris)eu-west-3 | $3.321 | $3.916 | ▲ 18% |
| AWS GovCloud (US-West)us-gov-west-1 | $3.388 | $3.995 | ▲ 18% |
| Asia Pacific (Sydney)ap-southeast-2 | $3.389 | $3.995 | ▲ 18% |
| AWS GovCloud (US-East)us-gov-east-1 | $3.389 | $3.995 | ▲ 18% |
| Asia Pacific (Seoul)ap-northeast-2 | $3.411 | $4.022 | ▲ 18% |
| Asia Pacific (Singapore)ap-southeast-1 | $3.411 | $4.022 | ▲ 18% |
| Asia Pacific (Tokyo)ap-northeast-1 | $3.411 | $4.022 | ▲ 18% |
| EU (Frankfurt)eu-central-1 | $3.411 | $4.022 | ▲ 18% |
| Middle East (UAE)me-central-1 | $3.481 | $4.104 | ▲ 18% |
| Asia Pacific (New Zealand)ap-southeast-6 | $3.558 | $4.195 | ▲ 18% |
| Europe (Zurich)eu-central-2 | $3.752 | $4.424 | ▲ 18% |
| Africa (Cape Town)af-south-1 | $3.77 | $4.445 | ▲ 18% |
| South America (Sao Paulo)sa-east-1 | $4.50 | $5.318 | ▲ 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.