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a1.xlarge vs inf2.xlarge

Instance Typea1.xlargeinf2.xlarge
Instance FamilyGeneral purposeMachine Learning ASIC
DetailsObsolete. Not recommended for use
Web servers, containerized microservices, caching fleets, distributed data stores, and dev environments.

a – ARM AWS Graviton Processor
1 – Generation
xlarge – Size
Machine Learning (ML) inference

inf – AWS Inferentia
2 – Generation
xlarge – Size
vCPUs44
Memory8 GiB16 GiB
CPU Architecturearm64x86_64
ProcessorAWS Graviton ProcessorAMD EPYC 7R13 Processor
Clock Speed2.3 GHz3.6 GHz
Threads Per Core12
Accelerators
GPUnono
GPUs1
Inference Acceleratornoyes
Inference Accelerator NameInferentia2
Inference Accelerator ManufacturerAWS
Inference Accelerator Count1
Accelerator Memory32 GiB
FPGAnono
Instances
Sizesa1.2xlarge, a1.4xlarge, a1.large, a1.medium, a1.metal, a1.xlargeinf2.24xlarge, inf2.48xlarge, inf2.8xlarge, inf2.xlarge
Generationsinf1.xlarge, inf2.xlarge
SageMakerml.inf2.xlarge
Free Tiernono
Burstablenono
Hibernationnono
Instance StorageEBS onlyEBS only
EBS (Elastic Block Store)
EBS Optimizeddefaultdefault
Encryptionsupportedsupported
NVMerequiredrequired
Dedicated Throughputup to 3500 MBpsup to 10240 MBps
Optimized Baseline Bandwidth800 Mbps1250 Mbps
Optimized Baseline Throughput100 Mbps156.25 Mbps
Optimized Baseline Performance6000 IOPS6000 IOPS
Optimized Max Performance20000 IOPS40000 IOPS
Optimized Max Bandwidth3500 Mbps10000 Mbps
Optimized Max Throughput437.5 Mbps1250 Mbps
Networking
Networking PerformanceUp to 10 GigabitUp to 15 Gigabit
Enhanced Networkingyesyes
Max Interfaces44
Max Cards11
IPv4 Addresses per Interface1515
IPv6 Addresses per Interface1515
IPv6 Supportyesyes
ENA Supportrequiredrequired
EFA Supportnono
Encryption in Transit Supportnoyes
ENA SRD Supportnono
Avg Price Diff1.00x8.68x

Regional Prices

Geography
Region
a1.xlarge
inf2.xlarge
Asia PacificAsia Pacific (Mumbai) (ap-south-1)0.1020n/a
HiddenHidden (hidden-1)0.10200.8340
HiddenHidden (hidden-10)n/a1.1373
HiddenHidden (hidden-11)n/a1.2889
HiddenHidden (hidden-2)0.11520.9098
HiddenHidden (hidden-3)0.11640.9478
HiddenHidden (hidden-4)0.11760.9857
HiddenHidden (hidden-5)0.12840.9857
HiddenHidden (hidden-6)0.13321.0615
HiddenHidden (hidden-7)n/a1.0615
HiddenHidden (hidden-8)n/a1.1373
HiddenHidden (hidden-9)n/a1.1373
USUS East (Ohio) (us-east-2)0.10200.7582
USUS East (Virginia) (us-east-1)0.10200.7582
USUS West (Oregon) (us-west-2)n/a0.7582
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