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r8i-flex.8xlarge

Part of the R8I-FLEX 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.iIntel Xeon Scalablei = Intel Xeon ScalableIntel Xeon Scalable (Granite Rapids) (x86_64). Powered by Intel Xeon Scalable x86_64 processors with Intel Advanced Vector Extensions (AVX-512 / AMX) acceleration.flexFlex Instanceflex = Flex InstanceFlex instances offer up to 19% better price-to-performance for workloads that do not continuously utilize full compute capacity.8xlarge8 Extra Large8xlarge = 8 Extra Large32 vCPUs • 256 GB RAM • EBS only • Up to 15 Gbps Network
Price (Linux)
$2.1115/ hr
~$1,541.41/mo
Compute
32vCPUs
16 cores • x86_64
Memory
256GB
8.0 GB / vCPU
Value
$0.0660/ vCPU-hr
$0.0082/GB-hr
Network
Up to 15 Gbps
Baseline: 7.5 Gbps
Storage & EBS
1,250MB/s
Max: 40,000 IOPS

Technical Specifications & Limits

Hardware specs, container thresholds, and system limits

Compute & Processor

ProcessorIntel Xeon Scalable (Granite Rapids)
Architecturex86_64 (x86_64)
vCPUs / Threads32 vCPUs
Physical Cores16
Clock Speed3.9 GHz
Intel AVX / AVX2AVX & AVX2 Supported
Intel Turbo BoostYes
Bare MetalNo (Virtualized)

Performance & Benchmarks

CoreMark Score745,573
CoreMark / vCPU23,299.2 / core
FFmpeg Transcoding232 FPS
CoreMark per Dollar353,098 score / $
Cost per vCPU-hr$0.0660
Cost per GB-hr$0.0082

Containers & Kubernetes

EKS Max Pods492 pods
Max ECS Tasks60 tasks
Max ENIs10
IPv4/v6 per ENI50
Total Addressable IPs500 total IPs
CNI Prefix DelegationSupported (High Density)

Networking & Bandwidth

Network PerformanceUp to 15 Gbps
Baseline Bandwidth7.5 Gbps
Burst / Peak Bandwidth15 Gbps
Enhanced NetworkingYes
EFA SupportNo
IPv6 SupportNative Dual-Stack Supported

Storage & EBS Optimization

Storage ConfigurationEBS only
Local NVMe DiskNone (EBS only)
EBS Baseline Throughput625 MB/s
EBS Max Throughput1250 MB/s
EBS Baseline IOPS20,000
EBS Max / Burst IOPS40,000
Dedicated EBS ThroughputUp to 10000 Mbps

Platform & Architecture Details

Hypervisor / SystemAWS Nitro System (PCIe Offload)
Nitro EnclavesNot Supported
Normalization Factor64
Generation StatusCurrent Generation (Recommended)
Date Introduced2025-08-19

Regional Pricing Matrix

Live on-demand rates across all global AWS cloud regions
Lowest Price Region
$2.1115/ hr
US East (N. Virginia) (us-east-1)
Highest Price Region
$3.3683/ hr
South America (Sao Paulo) (sa-east-1)
Global Fleet Average
$2.4542/ hr
Across all active regions
Regional Coverage
27regions
Available worldwide
Linux — Available in all 27 regions
RegionOn-Demand Price
af-south-1
Africa (Cape Town)
$2.8154
ap-south-2
Asia Pacific (Hyderabad)
$2.1786
ap-southeast-5
Asia Pacific (Malaysia)
$2.1651
ap-south-1
Asia Pacific (Mumbai)
$2.1786
ap-southeast-6
Asia Pacific (New Zealand)
$2.6570
ap-northeast-2
Asia Pacific (Seoul)
$2.5472
ap-southeast-1
Asia Pacific (Singapore)
$2.5472
ap-southeast-2
Asia Pacific (Sydney)
$2.5306
ap-northeast-1
Asia Pacific (Tokyo)
$2.5472
us-gov-east-1
AWS GovCloud (US-East)
$2.5306
us-gov-west-1
AWS GovCloud (US-West)
$2.5306
ca-central-1
Canada (Central)
$2.3126
ca-west-1
Canada West (Calgary)
$2.3126
eu-central-1
EU (Frankfurt)
$2.5472
eu-west-1
EU (Ireland)
$2.3629
eu-west-2
EU (London)
$2.4802
eu-south-1
EU (Milan)
$2.4802
eu-west-3
EU (Paris)
$2.4802
eu-north-1
EU (Stockholm)
$2.2456
eu-south-2
Europe (Spain)
$2.3629
eu-central-2
Europe (Zurich)
$2.8019
me-central-1
Middle East (UAE)
$2.5992
sa-east-1
South America (Sao Paulo)
Highest
$3.3683
us-east-1
US East (N. Virginia)
Lowest
$2.1115
us-east-2
US East (Ohio)
Lowest
$2.1115
us-west-1
US West (N. California)
$2.3461
us-west-2
US West (Oregon)
Lowest
$2.1115