Compare instance

r9g.12xlarge

Part of the R9G Memory Optimized family — High memory-to-vCPU ratio for memory-intensive applications.

Name:rMemory Optimizedr = Memory OptimizedHigh memory-to-vCPU ratio designed for memory-intensive applications such as databases, distributed caches, and in-memory analytics.99th Generation9 = 9th GenerationAWS 9th generation hardware platform with updated CPU/system architecture.gAWS Gravitong = AWS GravitonAWS Graviton5 Processor (arm64). Powered by custom 64-bit ARM AWS Graviton processors, delivering industry-leading price-performance and power efficiency.12xlarge12 Extra Large12xlarge = 12 Extra Large48 vCPUs • 384 GB RAM • EBS only • 25 Gbps Network
Price (Linux)
$3.0821/ hr
~$2,249.92/mo
Compute
48vCPUs
48 cores • arm64
Memory
384GB
8.0 GB / vCPU
Value
$0.0642/ vCPU-hr
$0.0080/GB-hr
Network
25 Gbps
Baseline: 25 Gbps
Storage & EBS
2,250MB/s
Max: 72,000 IOPS

Technical Specifications & Limits

Hardware specs, container thresholds, and system limits

Compute & Processor

ProcessorAWS Graviton5 Processor
Architecturearm64 (ARM64 (Graviton))
vCPUs / Threads48 vCPUs
Physical Cores48
Clock Speed3.3 GHz
Intel AVX / AVX2No
Intel Turbo BoostNo
Bare MetalNo (Virtualized)

Performance & Benchmarks

CoreMark ScoreNot benchmarked
CoreMark / vCPU—
FFmpeg Transcoding—
CoreMark per Dollar—
Cost per vCPU-hr$0.0642
Cost per GB-hr$0.0080

Containers & Kubernetes

EKS Max Pods—
Max ECS Tasks—
Max ENIs12
IPv4/v6 per ENI50
Total Addressable IPs600 total IPs
CNI Prefix DelegationSupported (High Density)

Networking & Bandwidth

Network Performance25 Gbps
Baseline Bandwidth25 Gbps
Burst / Peak Bandwidth25 Gbps
Enhanced NetworkingYes
EFA SupportNo
IPv6 SupportNative Dual-Stack Supported

Storage & EBS Optimization

Storage ConfigurationEBS only
Local NVMe DiskNone (EBS only)
EBS Baseline Throughput2250 MB/s
EBS Max Throughput2250 MB/s
EBS Baseline IOPS72,000
EBS Max / Burst IOPS72,000
Dedicated EBS Throughput18000 Mbps

Platform & Architecture Details

Hypervisor / SystemAWS Nitro System (PCIe Offload)
Nitro EnclavesSupported (Isolated security enclaves)
Normalization Factor96
Generation StatusCurrent Generation (Recommended)
Date Introduced2026-08-31

Regional Pricing Matrix

Live on-demand rates across all global AWS cloud regions
Lowest Price Region
$3.0821/ hr
US East (N. Virginia) (us-east-1)
Highest Price Region
$3.7181/ hr
EU (Frankfurt) (eu-central-1)
Global Fleet Average
$3.2411/ hr
Across all active regions
Regional Coverage
4regions
Available worldwide
Linux — Available in all 4 regions
RegionOn-Demand Price
eu-central-1
EU (Frankfurt)
Highest
$3.7181
us-east-1
US East (N. Virginia)
Lowest
$3.0821
us-east-2
US East (Ohio)
Lowest
$3.0821
us-west-2
US West (Oregon)
Lowest
$3.0821