r8ib.12xlarge by Amazon Web Services
(All-cores)
(Single-core)
Specifications
Server Metadata
Vendor ID | aws |
Name | r8ib.12xlarge |
Description | Memory optimized [Intel processors] Gen8 12xlarge |
Family | r8ib |
Hw Virt | - |
Status | active |
Observed At | 2026-07-27T11:33:31.042205 |
Availability
| REGION / ID | SPOT | ONDEMAND |
|---|---|---|
Northern Virgina (US) / us-east-1 | 2.4724 USD/h | 5.0208 USD/h |
Oregon (US) / us-west-2 | 2.2837 USD/h | 5.0208 USD/h |
Ohio (US) / us-east-2 | 2.4545 USD/h | 5.0208 USD/h |
Dublin (IE) / eu-west-1 | 1.739167 USD/h | 5.6273 USD/h |
Aragón (ES) / eu-south-2 | 5.6273 USD/h | 5.6273 USD/h |
Frankfurt (DE) / eu-central-1 | 4.493867 USD/h | 5.9978 USD/h |
Tokyo (JP) / ap-northeast-1 | 6.0989 USD/h | 6.0989 USD/h |
Processor
vCPUs | 48 |
Hypervisor | nitro |
CPU Allocation | Dedicated |
CPU Cores | 24 |
CPU Speed | 3.9 GHz |
CPU Architecture | x86_64 |
CPU Manufacturer | Intel |
System Resources and Accelerators
| MEMORY | |
|---|---|
Memory Amount | 384 GiB |
| GPU | |
|---|---|
GPU Count | 0 |
GPU Memory Min | 0 MiB |
GPU Memory Total | 0 MiB |
GPUs |
| STORAGE | |
|---|---|
Storage Size | 0 GB |
Storages |
| NETWORK | |
|---|---|
Network Speed Baseline | 50 Gbps |
Network Speed Max | 50 Gbps |
Network Storage Speed Baseline | 37.5 Gbps |
Network Storage Speed Max | 37.5 Gbps |
Inbound Traffic | 0 GB/month |
Outbound Traffic | 0 GB/month |
IPv4 | 0 |
Server Description
A memory-optimized x86_64 server featuring high memory density, dedicated Intel processors, and 50 Gbps baseline network bandwidth.
Amazon Web Services r8ib.12xlarge is a memory-optimized instance featuring 48 vCPUs and 24 physical Intel cores running at 3.9 GHz on the x86_64 architecture. Built on the AWS Nitro hypervisor, it provides a dedicated CPU allocation and 384.0 GB of system memory, establishing an 8.0 GB per core ratio. The instance lacks local storage and GPU hardware, relying instead on network-attached storage supported by a baseline network bandwidth of 50 Gbps. This hardware profile delivers qualitative cost efficiency for memory-bound applications by offering a high memory-to-vCPU ratio without forcing the acquisition of unnecessary compute cores. The r8ib.12xlarge is engineered for workloads such as in-memory databases, large-scale caching layers, and enterprise applications requiring high memory capacity and consistent network performance.
Economics
Alternatives
Servers of the Same Family
| INSTANCE | vCPUs | MEMORY | GPUs |
|---|---|---|---|
| r8ib.large | 2 | 16 GiB | 0 |
| r8ib.xlarge | 4 | 32 GiB | 0 |
| r8ib.2xlarge | 8 | 64 GiB | 0 |
| r8ib.4xlarge | 16 | 128 GiB | 0 |
| r8ib.8xlarge | 32 | 256 GiB | 0 |
| r8ib.16xlarge | 64 | 512 GiB | 0 |
| r8ib.24xlarge | 96 | 768 GiB | 0 |
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