r8i-flex.16xlarge
r8i-flex.16xlarge is an AWS EC2 instance with 64 vCPUs, 512 GiB memory (Intel Xeon Scalable (Granite Rapids)). In US East (N. Virginia) it costs $4.223 per hour on demand ($3,082.79 per month) for Linux. Spot capacity is about $1.038 per hour. It is sold in 27 regions.
Prices by region
USD per hour, Linux. Reserved prices are no upfront, standard. Cheapest on-demand first.
| Region | On-demand | Spot | 1-yr savings plan | 3-yr savings plan |
|---|---|---|---|---|
| US East (N. Virginia) us-east-1 | $4.223 | $1.038 | $3.06 | $2.203 |
| US East (Ohio) us-east-2 | $4.223 | $0.9184 | $3.06 | $2.203 |
| US West (Oregon) us-west-2 | $4.223 | $0.8599 | $3.06 | $2.203 |
| Asia Pacific (Malaysia) ap-southeast-5 | $4.33 | $1.299 | $3.137 | $2.259 |
| Asia Pacific (Mumbai) ap-south-1 | $4.357 | $1.265 | $3.15 | $2.262 |
| Asia Pacific (Hyderabad) ap-south-2 | $4.357 | $0.4357 | $3.143 | $2.262 |
| EU (Stockholm) eu-north-1 | $4.491 | $0.9102 | $3.254 | $2.343 |
| Canada (Central) ca-central-1 | $4.625 | $2.679 | $3.343 | $2.402 |
| Canada West (Calgary) ca-west-1 | $4.625 | $1.259 | $3.343 | $2.402 |
| US West (N. California) us-west-1 | $4.692 | $1.305 | $3.40 | $2.448 |
| Europe (Spain) eu-south-2 | $4.726 | $1.479 | $3.424 | $2.465 |
| EU (Ireland) eu-west-1 | $4.726 | $1.905 | $3.424 | $2.465 |
| EU (Milan) eu-south-1 | $4.96 | $1.45 | $3.594 | $2.587 |
| EU (London) eu-west-2 | $4.96 | $1.352 | $3.59 | $2.588 |
| EU (Paris) eu-west-3 | $4.96 | $2.795 | $3.59 | $2.588 |
| Asia Pacific (Sydney) ap-southeast-2 | $5.061 | $3.841 | $3.66 | $2.625 |
| AWS GovCloud (US-East) us-gov-east-1 | $5.061 | – | $3.667 | $2.64 |
| AWS GovCloud (US-West) us-gov-west-1 | $5.061 | – | $3.667 | $2.64 |
| Asia Pacific (Tokyo) ap-northeast-1 | $5.094 | $1.37 | $3.691 | $2.657 |
| Asia Pacific (Seoul) ap-northeast-2 | $5.094 | $1.303 | $3.695 | $2.647 |
| Asia Pacific (Singapore) ap-southeast-1 | $5.094 | $1.954 | $3.691 | $2.657 |
| EU (Frankfurt) eu-central-1 | $5.094 | $2.056 | $3.691 | $2.657 |
| Middle East (UAE) me-central-1 | $5.198 | $0.6062 | $3.766 | $2.712 |
| Asia Pacific (New Zealand) ap-southeast-6 | $5.314 | – | $3.843 | $2.756 |
| Europe (Zurich) eu-central-2 | $5.604 | $2.539 | $4.06 | $2.923 |
| Africa (Cape Town) af-south-1 | $5.631 | $1.297 | $4.08 | $2.937 |
| South America (Sao Paulo) sa-east-1 | $6.737 | $0.7013 | $4.874 | $3.493 |
Prices by operating system in US East (N. Virginia)
| Operating system | On-demand /hr | 1-yr reserved /hr | 3-yr reserved /hr |
|---|---|---|---|
| Linux | $4.223 | – | – |
| Ubuntu Pro | $4.335 | – | – |
| SUSE | $4.348 | – | – |
| RHEL | $4.914 | – | – |
| Linux SQL Web | $5.305 | – | – |
| RHEL HA | $5.81 | – | – |
| RHEL SQL Web | $5.996 | – | – |
| Windows | $7.02 | – | – |
| Windows SQL Web | $8.101 | – | – |
| Linux SQL Std | $11.903 | – | – |
| RHEL SQL Std | $12.594 | – | – |
| RHEL HA SQL Std | $13.49 | – | – |
| Windows SQL Std | $14.70 | – | – |
| Linux SQL Ent | $28.223 | – | – |
| RHEL SQL Ent | $28.914 | – | – |
| RHEL HA SQL Ent | $29.81 | – | – |
| Windows SQL Ent | $31.02 | – | – |
Specs
| Compute | Value |
|---|---|
| vCPUs | 64 |
| Physical cores | 32 |
| Threads per core | 2 |
| Architecture | x86_64 |
| Processor | Intel Xeon Scalable (Granite Rapids) |
| CPU maker | Intel |
| Clock speed | 3.9 GHz |
| Sustained clock | 3.9 GHz |
| Processor features | Intel AVX; Intel AVX2; Intel AVX512; Intel Turbo; Intel AMX |
| Burstable | No |
| Memory | Value |
|---|---|
| Memory (GiB) | 512 |
| Networking | Value |
|---|---|
| Network | Up to 30 Gbps |
| Network baseline | 15 Gbps |
| Network peak | 30 Gbps |
| Enhanced networking | Yes (ENA) |
| EFA | No |
| IPv6 | Yes |
| Max network interfaces | 16 |
| IPv4 addresses per interface | 64 |
| Storage | Value |
|---|---|
| Storage | EBS only |
| EBS optimized | Yes |
| EBS over NVMe | Required |
| EBS throughput | Up to 20000 Mbps |
| EBS baseline bandwidth | 10,000 Mbps |
| EBS max bandwidth | 20,000 Mbps |
| EBS baseline throughput | 1,250 MB/s |
| EBS max throughput | 2,500 MB/s |
| EBS baseline IOPS | 40,000 |
| EBS max IOPS | 80,000 |
| Max EBS volumes | 48 |
| Instance details | Value |
|---|---|
| Instance type | r8i-flex.16xlarge |
| Family | r8i-flex |
| Category | Memory optimized |
| Current generation | Yes |
| Normalization factor | 128 |
| Bare metal | No |
| Hypervisor | Nitro |
| Placement groups | Partition, Spread |
| Hibernation | No |
| Nitro Enclaves | No |
| Boot modes | Legacy BIOS, UEFI |
Compare r8i-flex.16xlarge
Compute and memory optimized
With or without local disk and networking
Other r8i-flex sizes
| Size | vCPUs | Memory (GiB) | On-demand /hr |
|---|---|---|---|
| r8i-flex.large | 2 | 16 | $0.132 |
| r8i-flex.xlarge | 4 | 32 | $0.2639 |
| r8i-flex.2xlarge | 8 | 64 | $0.5279 |
| r8i-flex.4xlarge | 16 | 128 | $1.056 |
| r8i-flex.8xlarge | 32 | 256 | $2.111 |
| r8i-flex.12xlarge | 48 | 384 | $3.167 |
| r8i-flex.16xlarge | 64 | 512 | $4.223 |
Prices updated 2026-11-12 from AWS public price lists. Compare all AWS EC2 instances.