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r6a.12xlarge

Part of the R6A 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.66th Generation6 = 6th GenerationAWS 6th generation hardware platform with updated CPU/system architecture.aAMD EPYCa = AMD EPYCAMD EPYC 7R13 Processor (x86_64). Powered by AMD EPYC x86_64 processors, delivering high core counts and cost-effective compute performance.12xlarge12 Extra Large12xlarge = 12 Extra Large48 vCPUs • 384 GB RAM • EBS only • 18.75 Gbps Network
Price (Linux)
$1.7160/ hr
~$1,252.68/mo
Compute
48vCPUs
24 cores • x86_64
Memory
384GB
8.0 GB / vCPU
Value
$0.0357/ vCPU-hr
$0.0045/GB-hr
Network
18.75 Gbps
Baseline: 18.75 Gbps
Storage & EBS
1,875MB/s
Max: 60,000 IOPS

Alternatives to r6a.12xlarge

OptionPrice vs r6a.12xlargeWhy look at it
r6i.12xlargeCompare →
+11%+$0.302/hr
Linux on-demand, us-east-1		Intel (x86_64), same vCPU and RAM
r6g.12xlargeCompare →
-11%-$0.302/hr
Linux on-demand, us-east-1		Graviton (arm64), same vCPU and RAM

Technical Specifications & Limits

Hardware specs, container thresholds, and system limits

Compute & Processor

ProcessorAMD EPYC 7R13 Processor
Architecturex86_64 (x86_64)
vCPUs / Threads48 vCPUs
Physical Cores24
Clock Speed3.6 GHz
Intel AVX / AVX2No
Intel Turbo BoostNo
Bare MetalNo (Virtualized)

Performance & Benchmarks

CoreMark Score1,064,184
CoreMark / vCPU22,170.5 / core
FFmpeg Transcoding217 FPS
CoreMark per Dollar620,154 score / $
Cost per vCPU-hr$0.0357
Cost per GB-hr$0.0045

Containers & Kubernetes

EKS Max Pods234 pods
Max ECS Tasks120 tasks
Max ENIs8
IPv4/v6 per ENI30
Total Addressable IPs240 total IPs
CNI Prefix DelegationSupported (High Density)

Networking & Bandwidth

Network Performance18.75 Gbps
Baseline Bandwidth18.75 Gbps
Burst / Peak Bandwidth18.75 Gbps
Enhanced NetworkingYes
EFA SupportNo
IPv6 SupportNative Dual-Stack Supported

Storage & EBS Optimization

Storage ConfigurationEBS only
Local NVMe DiskNone (EBS only)
EBS Baseline Throughput1875 MB/s
EBS Max Throughput1875 MB/s
EBS Baseline IOPS60,000
EBS Max / Burst IOPS60,000
Dedicated EBS Throughput10000 Mbps

Platform & Architecture Details

Hypervisor / SystemAWS Nitro System (PCIe Offload)
Nitro EnclavesSupported (Isolated security enclaves)
Normalization Factor96
Generation StatusCurrent Generation (Recommended)
Date Introduced2022-07-19

Regional Pricing Matrix

Live on-demand rates across all global AWS cloud regions
Lowest Price Region
$1.7160/ hr
Asia Pacific (Mumbai) (ap-south-1)
Highest Price Region
$3.2832/ hr
Asia Pacific (Tokyo) (ap-northeast-1)
Global Fleet Average
$2.8427/ hr
Across all active regions
Regional Coverage
13regions
Available worldwide
Linux — Available in all 13 regions
RegionOn-Demand Price
ap-south-2
Asia Pacific (Hyderabad)
Lowest
$1.7160
ap-south-1
Asia Pacific (Mumbai)
Lowest
$1.7160
ap-southeast-1
Asia Pacific (Singapore)
Highest
$3.2832
ap-southeast-2
Asia Pacific (Sydney)
$3.2616
ap-northeast-1
Asia Pacific (Tokyo)
Highest
$3.2832
ca-central-1
Canada (Central)
$2.9808
eu-central-1
EU (Frankfurt)
Highest
$3.2832
eu-west-1
EU (Ireland)
$3.0456
eu-west-2
EU (London)
$3.1968
us-east-1
US East (N. Virginia)
$2.7216
us-east-2
US East (Ohio)
$2.7216
us-west-1
US West (N. California)
$3.0240
us-west-2
US West (Oregon)
$2.7216