r8g.4xlargevsr8i.4xlarge
r8g.4xlarge is 15% cheaper than r8i.4xlarge on demand in US East (N. Virginia), saving $123.22 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.4xlarge | r8i.4xlarge |
|---|---|---|
| On-demand | $0.9426/hr15% less | $1.111/hr |
| Lowest rate | $0.2495/hr22% lessSpot, can be interrupted | $0.32/hrSpot, can be interrupted |
| Size | 16 vCPUs, 128 GiB | 16 vCPUs, 128 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.4xlarge | r8i.4xlarge | r8i.4xlarge vs r8g.4xlarge |
|---|---|---|---|
| On-demandPay by the hour | $0.9426 | $1.111 | ▲ 18% |
| SpotCan be interrupted | 74% off$0.2495 | 71% off$0.32 | ▲ 28% |
| 1-yr reservedNo upfront | 34% off$0.6235 | — | — |
| 3-yr reservedNo upfront | 55% off$0.4276 | — | — |
| 1-yr savings planHourly commitment | 28% off$0.6829 | 28% off$0.8052 | ▲ 18% |
| 3-yr savings planHourly commitment | 48% off$0.4917 | 48% off$0.5797 | ▲ 18% |
Key differences
The biggest lead each one has.
Where r8g.4xlarge leads
On-demand price$0.9426 vs $1.111 per hour
15% cheaperPhysical cores16 vs 8
2× higherWhere r8i.4xlarge 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.4xlarge | r8i.4xlarge |
|---|---|---|
| vCPUs | 16 | 16 |
| Physical cores | 16 | 8 |
| 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.4xlarge | r8i.4xlarge |
|---|---|---|
| Memory (GiB) | 128 | 128 |
| Networking2 of 8 differ | r8g.4xlarge | r8i.4xlarge |
|---|---|---|
| Network | Up to 15 Gigabit | Up to 15000 Megabit |
| Network baseline | 7.5 Gbps | 7.5 Gbps |
| Network peak | 15 Gbps | 15 Gbps |
| Enhanced networking | Yes (ENA) | Yes (ENA) |
| EFA | No | No |
| IPv6 | Yes | Yes |
| Max network interfaces | 8 | 8 |
| IPv4 addresses per interface | 30 | 50 |
| Storage1 of 11 differ | r8g.4xlarge | r8i.4xlarge |
|---|---|---|
| Storage | EBS only | EBS only |
| EBS optimized | Yes | Yes |
| EBS over NVMe | Required | Required |
| EBS throughput | Up to 10 Gbps | Up to 10000 Mbps |
| EBS baseline bandwidth | 5,000 Mbps | 5,000 Mbps |
| EBS max bandwidth | 10,000 Mbps | 10,000 Mbps |
| EBS baseline throughput | 625 MB/s | 625 MB/s |
| EBS max throughput | 1,250 MB/s | 1,250 MB/s |
| EBS baseline IOPS | 20,000 | 20,000 |
| EBS max IOPS | 40,000 | 40,000 |
| Max EBS volumes | 32 | 32 |
| Instance details2 of 10 differ | r8g.4xlarge | r8i.4xlarge |
|---|---|---|
| Family | r8g | r8i |
| Category | Memory optimized | Memory optimized |
| Current generation | Yes | Yes |
| Normalization factor | 32 | 32 |
| Bare metal | No | No |
| Hypervisor | Nitro | Nitro |
| Placement groups | Cluster, Partition, Spread | Cluster, Partition, Spread |
| Hibernation | Yes | Yes |
| Nitro Enclaves | Yes | Yes |
| Boot modes | UEFI | Legacy BIOS, UEFI |
On-demand prices by region
Cheapest for r8g.4xlarge first. Linux, USD per hour.
| Region | r8g.4xlarge | r8i.4xlarge | Difference |
|---|---|---|---|
| Asia Pacific (Hyderabad)ap-south-2 | $0.6606 | $1.147 | ▲ 74% |
| Asia Pacific (Mumbai)ap-south-1 | $0.6606 | $1.147 | ▲ 74% |
| US East (N. Virginia)Used in summaryus-east-1 | $0.9426 | $1.111 | ▲ 18% |
| US East (Ohio)us-east-2 | $0.9426 | $1.111 | ▲ 18% |
| US West (Oregon)us-west-2 | $0.9426 | $1.111 | ▲ 18% |
| Asia Pacific (Malaysia)ap-southeast-5 | $0.9664 | $1.139 | ▲ 18% |
| EU (Stockholm)eu-north-1 | $1.002 | $1.182 | ▲ 18% |
| Canada (Central)ca-central-1 | $1.032 | $1.217 | ▲ 18% |
| Canada West (Calgary)ca-west-1 | $1.032 | $1.217 | ▲ 18% |
| US West (N. California)us-west-1 | $1.047 | $1.235 | ▲ 18% |
| Europe (Spain)eu-south-2 | $1.054 | $1.244 | ▲ 18% |
| EU (Ireland)eu-west-1 | $1.055 | $1.244 | ▲ 18% |
| EU (Milan)eu-south-1 | $1.105 | $1.305 | ▲ 18% |
| EU (London)eu-west-2 | $1.107 | $1.305 | ▲ 18% |
| EU (Paris)eu-west-3 | $1.107 | $1.305 | ▲ 18% |
| AWS GovCloud (US-West)us-gov-west-1 | $1.129 | $1.332 | ▲ 18% |
| Asia Pacific (Sydney)ap-southeast-2 | $1.13 | $1.332 | ▲ 18% |
| AWS GovCloud (US-East)us-gov-east-1 | $1.13 | $1.332 | ▲ 18% |
| Asia Pacific (Seoul)ap-northeast-2 | $1.137 | $1.341 | ▲ 18% |
| Asia Pacific (Singapore)ap-southeast-1 | $1.137 | $1.341 | ▲ 18% |
| Asia Pacific (Tokyo)ap-northeast-1 | $1.137 | $1.341 | ▲ 18% |
| EU (Frankfurt)eu-central-1 | $1.137 | $1.341 | ▲ 18% |
| Middle East (UAE)me-central-1 | $1.16 | $1.368 | ▲ 18% |
| Asia Pacific (New Zealand)ap-southeast-6 | $1.186 | $1.398 | ▲ 18% |
| Europe (Zurich)eu-central-2 | $1.251 | $1.475 | ▲ 18% |
| Africa (Cape Town)af-south-1 | $1.257 | $1.482 | ▲ 18% |
| South America (Sao Paulo)sa-east-1 | $1.50 | $1.773 | ▲ 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.