r8i-flex.12xlarge
r8i-flex.12xlarge is an AWS EC2 instance with 48 vCPUs, 384 GiB memory (Intel Xeon Scalable (Granite Rapids)). In US East (N. Virginia) it costs $3.167 per hour on demand ($2,312.13 per month) for Linux. Spot capacity is about $0.614 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 | $3.167 | $0.614 | $2.295 | $1.652 |
| US East (Ohio) us-east-2 | $3.167 | $0.6812 | $2.295 | $1.652 |
| US West (Oregon) us-west-2 | $3.167 | $1.075 | $2.295 | $1.652 |
| Asia Pacific (Malaysia) ap-southeast-5 | $3.248 | $0.9931 | $2.353 | $1.694 |
| Asia Pacific (Mumbai) ap-south-1 | $3.268 | $0.3556 | $2.362 | $1.697 |
| Asia Pacific (Hyderabad) ap-south-2 | $3.268 | $0.3268 | $2.357 | $1.696 |
| EU (Stockholm) eu-north-1 | $3.368 | $0.3887 | $2.44 | $1.757 |
| Canada (Central) ca-central-1 | $3.469 | $0.3625 | $2.507 | $1.802 |
| Canada West (Calgary) ca-west-1 | $3.469 | $0.3469 | $2.507 | $1.802 |
| US West (N. California) us-west-1 | $3.519 | $0.3519 | $2.55 | $1.836 |
| Europe (Spain) eu-south-2 | $3.544 | $0.3544 | $2.568 | $1.849 |
| EU (Ireland) eu-west-1 | $3.544 | $1.391 | $2.568 | $1.849 |
| EU (Milan) eu-south-1 | $3.72 | $0.372 | $2.695 | $1.941 |
| EU (London) eu-west-2 | $3.72 | $1.151 | $2.692 | $1.941 |
| EU (Paris) eu-west-3 | $3.72 | $0.4465 | $2.692 | $1.941 |
| Asia Pacific (Sydney) ap-southeast-2 | $3.796 | $1.31 | $2.745 | $1.969 |
| AWS GovCloud (US-East) us-gov-east-1 | $3.796 | – | $2.75 | $1.98 |
| AWS GovCloud (US-West) us-gov-west-1 | $3.796 | – | $2.75 | $1.98 |
| Asia Pacific (Tokyo) ap-northeast-1 | $3.821 | $1.507 | $2.768 | $1.993 |
| Asia Pacific (Seoul) ap-northeast-2 | $3.821 | $0.6591 | $2.771 | $1.985 |
| Asia Pacific (Singapore) ap-southeast-1 | $3.821 | $1.438 | $2.768 | $1.993 |
| EU (Frankfurt) eu-central-1 | $3.821 | $1.326 | $2.768 | $1.993 |
| Middle East (UAE) me-central-1 | $3.899 | $0.4445 | $2.825 | $2.034 |
| Asia Pacific (New Zealand) ap-southeast-6 | $3.985 | – | $2.882 | $2.067 |
| Europe (Zurich) eu-central-2 | $4.203 | $0.5321 | $3.045 | $2.192 |
| Africa (Cape Town) af-south-1 | $4.223 | $0.5952 | $3.06 | $2.203 |
| South America (Sao Paulo) sa-east-1 | $5.053 | $0.5052 | $3.655 | $2.62 |
Prices by operating system in US East (N. Virginia)
| Operating system | On-demand /hr | 1-yr reserved /hr | 3-yr reserved /hr |
|---|---|---|---|
| Linux | $3.167 | – | – |
| Ubuntu Pro | $3.251 | – | – |
| SUSE | $3.292 | – | – |
| RHEL | $3.686 | – | – |
| Linux SQL Web | $3.978 | – | – |
| RHEL HA | $4.358 | – | – |
| RHEL SQL Web | $4.497 | – | – |
| Windows | $5.265 | – | – |
| Windows SQL Web | $6.076 | – | – |
| Linux SQL Std | $8.927 | – | – |
| RHEL SQL Std | $9.446 | – | – |
| RHEL HA SQL Std | $10.118 | – | – |
| Windows SQL Std | $11.025 | – | – |
| Linux SQL Ent | $21.167 | – | – |
| RHEL SQL Ent | $21.686 | – | – |
| RHEL HA SQL Ent | $22.358 | – | – |
| Windows SQL Ent | $23.265 | – | – |
Specs
| Compute | Value |
|---|---|
| vCPUs | 48 |
| Physical cores | 24 |
| 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) | 384 |
| Networking | Value |
|---|---|
| Network | Up to 22.5 Gbps |
| Network baseline | 11.25 Gbps |
| Network peak | 22.5 Gbps |
| Enhanced networking | Yes (ENA) |
| EFA | No |
| IPv6 | Yes |
| Max network interfaces | 12 |
| IPv4 addresses per interface | 50 |
| Storage | Value |
|---|---|
| Storage | EBS only |
| EBS optimized | Yes |
| EBS over NVMe | Required |
| EBS throughput | Up to 15000 Mbps |
| EBS baseline bandwidth | 7,500 Mbps |
| EBS max bandwidth | 15,000 Mbps |
| EBS baseline throughput | 937.5 MB/s |
| EBS max throughput | 1,875 MB/s |
| EBS baseline IOPS | 30,000 |
| EBS max IOPS | 60,000 |
| Max EBS volumes | 32 |
| Instance details | Value |
|---|---|
| Instance type | r8i-flex.12xlarge |
| Family | r8i-flex |
| Category | Memory optimized |
| Current generation | Yes |
| Normalization factor | 96 |
| Bare metal | No |
| Hypervisor | Nitro |
| Placement groups | Partition, Spread |
| Hibernation | No |
| Nitro Enclaves | No |
| Boot modes | Legacy BIOS, UEFI |
Compare r8i-flex.12xlarge
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.