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r8gb.12xlarge

Part of the R8GB 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.88th Generation8 = 8th GenerationAWS 8th generation hardware platform with updated CPU/system architecture.gAWS Gravitong = AWS GravitonAWS Graviton4 Processor (arm64). Powered by custom 64-bit ARM AWS Graviton processors, delivering industry-leading price-performance and power efficiency.bBlock Storage Optimized (EBS)b = Block Storage Optimized (EBS)Optimized for Amazon EBS with higher dedicated storage throughput and IOPS (up to 60 Gbps / 260,000 IOPS).12xlarge12 Extra Large12xlarge = 12 Extra Large48 vCPUs • 384.0 GiB RAM • EBS only • 100 Gigabit Network
Price (Linux)
$4.3723/ hr
~$3,191.79/mo
Compute
48vCPUs
48 cores • arm64
Memory
384.0GiB
8.0 GiB / vCPU
Value
$0.0911/ vCPU-hr
$0.0114/GiB-hr
Network
100Gbps
Baseline: 100 Gbps
Storage & EBS
9,375MB/s
Max: 360,000 IOPS

Technical Specifications & Limits

Hardware specs, container thresholds, and system limits

Compute & Processor

ProcessorAWS Graviton4 Processor
Architecturearm64 (ARM64 (Graviton))
vCPUs / Threads48 vCPUs
Physical Cores48
Clock Speed2.8 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$0.0911
Cost per GiB-hr$0.0114

Containers & Kubernetes

EKS Max Pods350 pods
Max ECS Tasks60 tasks
Max ENIs12
IPv4/v6 per ENI30
Total Addressable IPs360 total IPs
CNI Prefix DelegationSupported (High Density)

Networking & Bandwidth

Network Performance100 Gigabit
Baseline Bandwidth100 Gbps
Burst / Peak Bandwidth100 Gbps
Enhanced NetworkingYes
EFA SupportNo
IPv6 SupportNative Dual-Stack Supported

Storage & EBS Optimization

Storage ConfigurationEBS only
Local NVMe DiskNone (EBS only)
EBS Baseline Throughput9375 MB/s
EBS Max Throughput9375 MB/s
EBS Baseline IOPS360,000
EBS Max / Burst IOPS360,000
Dedicated EBS Throughput75000 Mbps

Platform & Architecture Details

Hypervisor / SystemAWS Nitro System (PCIe Offload)
Nitro EnclavesSupported (Isolated security enclaves)
Normalization Factor96
Generation StatusCurrent Generation (Recommended)
Date Introduced2025-09-23

Regional Pricing Matrix

Live on-demand rates across all global AWS cloud regions
Lowest Price Region
$4.3723/ hr
US East (N. Virginia) (us-east-1)
Highest Price Region
$4.3723/ hr
US East (N. Virginia) (us-east-1)
Global Fleet Average
$4.3723/ hr
Across all active regions
Regional Coverage
2regions
Available worldwide
Linux — Available in all 2 regions
Region NameRegion CodeOn-Demand Price
US East (N. Virginia)Lowest
us-east-1$4.3723
US West (Oregon)Lowest
us-west-2$4.3723