r8i.4xlargevsr8idn.4xlarge
r8i.4xlarge is 41% cheaper than r8idn.4xlarge on demand in US East (N. Virginia), saving $558.01 a month.
| At a glance | r8i.4xlarge | r8idn.4xlarge |
|---|---|---|
| On-demand | $1.111/hr41% less | $1.876/hr |
| Lowest rate | $0.32/hr68% lessSpot, can be interrupted | $0.9855/hrSpot, can be interrupted |
| Size | 16 vCPUs, 128 GiB | 16 vCPUs, 128 GiB |
| Processor | Intel Xeon Scalable (Granite Rapids) | 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 | r8i.4xlarge | r8idn.4xlarge | r8idn.4xlarge vs r8i.4xlarge |
|---|---|---|---|
| On-demandPay by the hour | $1.111 | $1.876 | ▲ 69% |
| SpotCan be interrupted | 71% off$0.32 | 47% off$0.9855 | ▲ 208% |
| 1-yr savings planHourly commitment | 28% off$0.8052 | 28% off$1.359 | ▲ 69% |
| 3-yr savings planHourly commitment | 48% off$0.5797 | 53% off$0.877 | ▲ 51% |
Key differences
The biggest lead each one has.
Where r8i.4xlarge leads
On-demand price$1.111 vs $1.876 per hour
41% cheaperWhere r8idn.4xlarge leads
Network baseline25 Gbps vs 7.5 Gbps
3.3× higherSpecs
6 of 41 specs differ. Those are in bold.
| ComputeAll 10 match | r8i.4xlarge | r8idn.4xlarge |
|---|---|---|
| vCPUs | 16 | 16 |
| Physical cores | 8 | 8 |
| Threads per core | 2 | 2 |
| Architecture | x86_64 | x86_64 |
| Processor | Intel Xeon Scalable (Granite Rapids) | Intel Xeon Scalable (Granite Rapids) |
| CPU maker | Intel | Intel |
| Clock speed | 3.9 GHz | 3.9 GHz |
| Sustained clock | 3.9 GHz | 3.9 GHz |
| Processor features | Intel AVX; Intel AVX2; Intel AVX512; Intel Turbo; Intel AMX | Intel AVX; Intel AVX2; Intel AVX512; Intel Turbo; Intel AMX |
| Burstable | No | No |
| MemoryAll 1 match | r8i.4xlarge | r8idn.4xlarge |
|---|---|---|
| Memory (GiB) | 128 | 128 |
| Networking3 of 8 differ | r8i.4xlarge | r8idn.4xlarge |
|---|---|---|
| Network | Up to 15000 Megabit | Up to 50 Gigabit |
| Network baseline | 7.5 Gbps | 25 Gbps |
| Network peak | 15 Gbps | 50 Gbps |
| Enhanced networking | Yes (ENA) | Yes (ENA) |
| EFA | No | No |
| IPv6 | Yes | Yes |
| Max network interfaces | 8 | 8 |
| IPv4 addresses per interface | 50 | 50 |
| Storage2 of 12 differ | r8i.4xlarge | r8idn.4xlarge |
|---|---|---|
| Storage | EBS only | 1 x 950 NVMe SSD |
| Local disks | – | 1 × 950 GB SSD |
| EBS optimized | Yes | Yes |
| EBS over NVMe | Required | Required |
| EBS throughput | Up to 10000 Mbps | 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 details1 of 10 differ | r8i.4xlarge | r8idn.4xlarge |
|---|---|---|
| Family | r8i | r8idn |
| 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 | Legacy BIOS, UEFI | Legacy BIOS, UEFI |
On-demand prices by region
Cheapest for r8i.4xlarge first. Linux, USD per hour.
| Region | r8i.4xlarge | r8idn.4xlarge | Difference |
|---|---|---|---|
| US East (N. Virginia)Used in summaryus-east-1 | $1.111 | $1.876 | ▲ 69% |
| US East (Ohio)us-east-2 | $1.111 | $1.876 | ▲ 69% |
| US West (Oregon)us-west-2 | $1.111 | $1.876 | ▲ 69% |
| EU (Ireland)eu-west-1 | $1.244 | $2.089 | ▲ 68% |
| Europe (Spain)eu-south-2 | $1.244 | $2.089 | ▲ 68% |
| Asia Pacific (Tokyo)ap-northeast-1 | $1.341 | $2.28 | ▲ 70% |
| EU (Frankfurt)eu-central-1 | $1.341 | $2.235 | ▲ 67% |
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.