r5.4xlargevsr6i.4xlarge
r5.4xlarge and r6i.4xlarge cost the same on demand in US East (N. Virginia), $1.008 per hour.
| At a glance | r5.4xlarge | r6i.4xlarge |
|---|---|---|
| On-demand | $1.008/hr | $1.008/hr |
| Lowest rate | $0.3326/hrSpot, can be interrupted | $0.282/hr15% lessSpot, can be interrupted |
| Size | 16 vCPUs, 128 GiB | 16 vCPUs, 128 GiB |
| Processor | Intel Xeon Platinum 8175 | Intel Xeon 8375C (Ice Lake) |
| 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 | r5.4xlarge | r6i.4xlarge | r6i.4xlarge vs r5.4xlarge |
|---|---|---|---|
| On-demandPay by the hour | $1.008 | $1.008 | Same |
| SpotCan be interrupted | 67% off$0.3326 | 72% off$0.282 | ▼ 15% |
| 1-yr reservedNo upfront | 37% off$0.635 | 34% off$0.6668 | ▲ 5% |
| 3-yr reservedNo upfront | 57% off$0.435 | 55% off$0.4572 | ▲ 5% |
| 1-yr savings planHourly commitment | 28% off$0.73 | 28% off$0.7303 | Same |
| 3-yr savings planHourly commitment | 48% off$0.526 | 48% off$0.5258 | Same |
Key differences
The biggest lead each one has.
Where r5.4xlarge leads
No clear lead on the measures we compare.
Where r6i.4xlarge leads
EBS max IOPS40,000 vs 18,750
2.1× higherNetwork baseline6.25 Gbps vs 5 Gbps
25% higherClock speed3.5 GHz vs 3.1 GHz
13% higherSpecs
16 of 41 specs differ. Those are in bold.
| Compute4 of 11 differ | r5.4xlarge | r6i.4xlarge |
|---|---|---|
| vCPUs | 16 | 16 |
| Physical cores | 8 | 8 |
| Threads per core | 2 | 2 |
| Architecture | x86_64 | x86_64 |
| Processor | Intel Xeon Platinum 8175 | Intel Xeon 8375C (Ice Lake) |
| CPU maker | Intel | Intel |
| Clock speed | 3.1 GHz | 3.5 GHz |
| Sustained clock | 3.1 GHz | 3.5 GHz |
| Processor features | Intel AVX; Intel AVX2; Intel AVX512; Intel Turbo | Intel AVX; Intel AVX2; Intel AVX512; Intel Turbo |
| Burstable | No | No |
| ECU | 70 | – |
| MemoryAll 1 match | r5.4xlarge | r6i.4xlarge |
|---|---|---|
| Memory (GiB) | 128 | 128 |
| Networking3 of 8 differ | r5.4xlarge | r6i.4xlarge |
|---|---|---|
| Network | Up to 10 Gigabit | Up to 12500 Megabit |
| Network baseline | 5 Gbps | 6.25 Gbps |
| Network peak | 10 Gbps | 12.5 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 | r5.4xlarge | r6i.4xlarge |
|---|---|---|
| Storage | EBS only | EBS only |
| EBS optimized | Yes | Yes |
| EBS over NVMe | Required | Required |
| EBS throughput | 4750 Mbps | Up to 10000 Mbps |
| EBS baseline bandwidth | 4,750 Mbps | 5,000 Mbps |
| EBS max bandwidth | 4,750 Mbps | 10,000 Mbps |
| EBS baseline throughput | 593.75 MB/s | 625 MB/s |
| EBS max throughput | 593.75 MB/s | 1,250 MB/s |
| EBS baseline IOPS | 18,750 | 20,000 |
| EBS max IOPS | 18,750 | 40,000 |
| Max EBS volumes | 27 | 27 |
| Instance details2 of 10 differ | r5.4xlarge | r6i.4xlarge |
|---|---|---|
| Family | r5 | r6i |
| 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 | No |
| Nitro Enclaves | Yes | Yes |
| Boot modes | Legacy BIOS, UEFI | Legacy BIOS, UEFI |
On-demand prices by region
Cheapest for r5.4xlarge first. Linux, USD per hour.
| Region | r5.4xlarge | r6i.4xlarge | Difference |
|---|---|---|---|
| US East (N. Virginia)Used in summaryus-east-1 | $1.008 | $1.008 | Same |
| US East (Ohio)us-east-2 | $1.008 | $1.008 | Same |
| US West (Oregon)us-west-2 | $1.008 | $1.008 | Same |
| Asia Pacific (Hyderabad)ap-south-2 | $1.04 | $1.04 | Same |
| Asia Pacific (Mumbai)ap-south-1 | $1.04 | $1.04 | Same |
| EU (Stockholm)eu-north-1 | $1.072 | $1.072 | Same |
| Canada (Central)ca-central-1 | $1.104 | $1.104 | Same |
| Canada West (Calgary)ca-west-1 | $1.104 | $1.104 | Same |
| US West (N. California)us-west-1 | $1.12 | $1.12 | Same |
| EU (Ireland)eu-west-1 | $1.128 | $1.128 | Same |
| EU (London)eu-west-2 | $1.184 | $1.184 | Same |
| EU (Milan)eu-south-1 | $1.184 | $1.184 | Same |
| EU (Paris)eu-west-3 | $1.184 | $1.184 | Same |
| Israel (Tel Aviv)il-central-1 | $1.184 | $1.184 | Same |
| Asia Pacific (Sydney)ap-southeast-2 | $1.208 | $1.208 | Same |
| AWS GovCloud (US-East)us-gov-east-1 | $1.208 | $1.208 | Same |
| AWS GovCloud (US-West)us-gov-west-1 | $1.208 | $1.208 | Same |
| Asia Pacific (Osaka)ap-northeast-3 | $1.216 | $1.216 | Same |
| Asia Pacific (Seoul)ap-northeast-2 | $1.216 | $1.216 | Same |
| Asia Pacific (Singapore)ap-southeast-1 | $1.216 | $1.216 | Same |
| Asia Pacific (Tokyo)ap-northeast-1 | $1.216 | $1.216 | Same |
| EU (Frankfurt)eu-central-1 | $1.216 | $1.216 | Same |
| Middle East (Bahrain)me-south-1 | $1.241 | $1.241 | Same |
| Middle East (UAE)me-central-1 | $1.241 | $1.241 | Same |
| Asia Pacific (Hong Kong)ap-east-1 | $1.336 | $1.336 | Same |
| Europe (Zurich)eu-central-2 | $1.338 | $1.338 | Same |
| Africa (Cape Town)af-south-1 | $1.344 | $1.344 | Same |
| South America (Sao Paulo)sa-east-1 | $1.608 | $1.608 | Same |
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.