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c8i-flex.4xlarge

Part of the C8I-FLEX Compute Optimized family — High-performance processors for compute-intensive applications.

Name:cCompute Optimizedc = Compute OptimizedOptimized for compute-bound applications that benefit from high-performance processors (web servers, batch processing, gaming servers, and video encoding).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.4xlarge4 Extra Large4xlarge = 4 Extra Large16 vCPUs • 32 GB RAM • EBS only • Up to 15 Gbps Network
Price (Linux)
$0.6980/ hr
~$509.54/mo
Compute
16vCPUs
8 cores • x86_64
Memory
32GB
2.0 GB / vCPU
Value
$0.0436/ vCPU-hr
$0.0218/GB-hr
Network
Up to 15 Gbps
Baseline: 3.75 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 / Threads16 vCPUs
Physical Cores8
Clock Speed3.9 GHz
Intel AVX / AVX2AVX & AVX2 Supported
Intel Turbo BoostYes
Bare MetalNo (Virtualized)

Performance & Benchmarks

CoreMark Score366,244
CoreMark / vCPU22,890.3 / core
FFmpeg Transcoding141 FPS
CoreMark per Dollar524,705 score / $
Cost per vCPU-hr$0.0436
Cost per GB-hr$0.0218

Containers & Kubernetes

EKS Max Pods394 pods
Max ECS Tasks40 tasks
Max ENIs8
IPv4/v6 per ENI50
Total Addressable IPs400 total IPs
CNI Prefix DelegationSupported (High Density)

Networking & Bandwidth

Network PerformanceUp to 15 Gbps
Baseline Bandwidth3.75 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 Throughput312.5 MB/s
EBS Max Throughput1250 MB/s
EBS Baseline IOPS12,000
EBS Max / Burst IOPS40,000
Dedicated EBS ThroughputUp to 10000 Mbps

Platform & Architecture Details

Hypervisor / SystemAWS Nitro System (PCIe Offload)
Nitro EnclavesNot Supported
Normalization Factor32
Generation StatusCurrent Generation (Recommended)
Date Introduced2025-10-06

Regional Pricing Matrix

Live on-demand rates across all global AWS cloud regions
Lowest Price Region
$0.6980/ hr
Asia Pacific (Malaysia) (ap-southeast-5)
Highest Price Region
$1.0977/ hr
South America (Sao Paulo) (sa-east-1)
Global Fleet Average
$0.8221/ hr
Across all active regions
Regional Coverage
20regions
Available worldwide
Linux — Available in all 20 regions
RegionOn-Demand Price
af-south-1
Africa (Cape Town)
$0.9552
ap-south-2
Asia Pacific (Hyderabad)
$0.7122
ap-southeast-5
Asia Pacific (Malaysia)
Lowest
$0.6980
ap-south-1
Asia Pacific (Mumbai)
$0.7122
ap-southeast-6
Asia Pacific (New Zealand)
$0.9766
ap-northeast-2
Asia Pacific (Seoul)
$0.8044
ap-southeast-1
Asia Pacific (Singapore)
$0.8212
ap-southeast-2
Asia Pacific (Sydney)
$0.9301
ap-northeast-1
Asia Pacific (Tokyo)
$0.8966
ca-central-1
Canada (Central)
$0.7792
eu-central-1
EU (Frankfurt)
$0.8127
eu-west-1
EU (Ireland)
$0.7642
eu-west-2
EU (London)
$0.8462
eu-west-3
EU (Paris)
$0.8462
eu-south-2
Europe (Spain)
$0.7641
sa-east-1
South America (Sao Paulo)
Highest
$1.0977
us-east-1
US East (N. Virginia)
$0.7122
us-east-2
US East (Ohio)
$0.7122
us-west-1
US West (N. California)
$0.8882
us-west-2
US West (Oregon)
$0.7122