a1.2xlarge vs r6i.2xlarge

Instance Typea1.2xlarger6i.2xlarge
Instance FamilyGeneral purposeMemory optimized
DetailsObsolete. Not recommended for use
Web servers, containerized microservices, caching fleets, distributed data stores, and dev environments.

a – ARM AWS Graviton Processor
1 – Generation
2xlarge – Size
High-performance databases, data mining/analysis, in-memory databases, distributed large-scale caches, real-time processing apps for unstructured big data, Hadoop/Spark clusters, and other enterprise apps.

r – RAM / memory optimized
6 – Generation
i – Intel processor
2xlarge – Size
vCPUs88
Memory16 GiB64 GiB
CPU Architecturearm64x86_64
ProcessorAWS Graviton ProcessorIntel Xeon 8375C (Ice Lake)
Clock Speed2.3 GHz3.5 GHz
Threads Per Core12
Accelerators
GPUnono
Inference Acceleratornono
FPGAnono
Instances
Sizesa1.2xlarge, a1.4xlarge, a1.large, a1.medium, a1.metal, a1.xlarger6i.12xlarge, r6i.16xlarge, r6i.24xlarge, r6i.2xlarge, r6i.32xlarge, r6i.4xlarge, r6i.8xlarge, r6i.large, r6i.metal, r6i.xlarge
Generationsr6i.2xlarge, r7i.2xlarge, r8i.2xlarge
Variantsr6a.2xlarge, r6g.2xlarge, r6gd.2xlarge, r6id.2xlarge, r6idn.2xlarge, r6in.2xlarge
SageMakerml.r6i.2xlarge
RDSdb.r6i.2xlarge, db.r6i.2xlarge.tpc1.mem2x, db.r6i.2xlarge.tpc2.mem4x, db.r6i.2xlarge.tpc2.mem8x
Free Tiernono
Burstablenono
Hibernationnono
Instance StorageEBS onlyEBS only
EBS (Elastic Block Store)
EBS Optimizeddefaultdefault
Encryptionsupportedsupported
NVMerequiredrequired
Dedicated Throughputup to 3500 MBpsup to 10000 MBps
Optimized Baseline Bandwidth1750 Mbps2500 Mbps
Optimized Baseline Throughput218.75 Mbps312.5 Mbps
Optimized Baseline Performance10000 IOPS12000 IOPS
Optimized Max Performance20000 IOPS40000 IOPS
Optimized Max Bandwidth3500 Mbps10000 Mbps
Optimized Max Throughput437.5 Mbps1250 Mbps
Networking
Networking PerformanceUp to 10 GigabitUp to 12500 Megabit
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 Diff1.00x2.59x

Regional Prices

Geography
Region
a1.2xlarge
r6i.2xlarge
Asia PacificAsia Pacific (Mumbai) (ap-south-1)0.2040n/a
HiddenHidden (hidden-1)0.20400.5168
HiddenHidden (hidden-10)n/a0.5600
HiddenHidden (hidden-11)n/a0.5640
HiddenHidden (hidden-12)n/a0.5920
HiddenHidden (hidden-13)n/a0.5920
HiddenHidden (hidden-14)n/a0.5920
HiddenHidden (hidden-15)n/a0.5922
HiddenHidden (hidden-16)n/a0.6040
HiddenHidden (hidden-17)n/a0.6040
HiddenHidden (hidden-18)n/a0.6040
HiddenHidden (hidden-19)n/a0.6080
HiddenHidden (hidden-2)0.23040.5168
HiddenHidden (hidden-20)n/a0.6080
HiddenHidden (hidden-21)n/a0.6080
HiddenHidden (hidden-22)n/a0.6080
HiddenHidden (hidden-23)n/a0.6080
HiddenHidden (hidden-24)n/a0.6204
HiddenHidden (hidden-25)n/a0.6204
HiddenHidden (hidden-26)n/a0.6342
HiddenHidden (hidden-27)n/a0.6680
HiddenHidden (hidden-28)n/a0.6688
HiddenHidden (hidden-29)n/a0.6720
HiddenHidden (hidden-3)0.23280.5200
HiddenHidden (hidden-30)n/a0.8040
HiddenHidden (hidden-4)0.23520.5200
HiddenHidden (hidden-5)0.25680.5292
HiddenHidden (hidden-6)0.26640.5360
HiddenHidden (hidden-7)n/a0.5472
HiddenHidden (hidden-8)n/a0.5520
HiddenHidden (hidden-9)n/a0.5520
USUS East (Ohio) (us-east-2)0.20400.5040
USUS East (Virginia) (us-east-1)0.20400.5040
USUS West (Oregon) (us-west-2)n/a0.5040
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