r8a.8xlarge vs i4i.8xlarge

Instance Typer8a.8xlargei4i.8xlarge
Instance FamilyMemory optimizedStorage optimized
DetailsHigh-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
8 – Generation
a – AMD processor
8xlarge – Size
NoSQL databases (like Cassandra, MongoDB, Redis), in-memory databases (such as Aerospike), scalable transactional databases, data warehousing, Elasticsearch, and analytics tasks.

i – IOPS / storage optimized
4 – Generation
i – Intel processor
8xlarge – Size
vCPUs3232
Memory256 GiB256 GiB
CPU Architecturex86_64x86_64
ProcessorAMD EPYC 9R45 ProcessorIntel Xeon 8375C (Ice Lake)
Clock Speed4.5 GHz3.5 GHz
Threads Per Core12
Accelerators
GPUnono
Inference Acceleratornono
FPGAnono
Instances
Sizesr8a.12xlarge, r8a.16xlarge, r8a.24xlarge, r8a.2xlarge, r8a.48xlarge, r8a.4xlarge, r8a.8xlarge, r8a.large, r8a.medium, r8a.metal-24xl, r8a.metal-48xl, r8a.xlargei4i.12xlarge, i4i.16xlarge, i4i.24xlarge, i4i.2xlarge, i4i.32xlarge, i4i.4xlarge, i4i.8xlarge, i4i.large, i4i.metal, i4i.xlarge
Generationsr5a.8xlarge, r6a.8xlarge, r7a.8xlarge, r8a.8xlargei4i.8xlarge, i7i.8xlarge
Variantsr8g.8xlarge, r8gb.8xlarge, r8gd.8xlarge, r8gn.8xlarge, r8i-flex.8xlarge, r8i.8xlarge, r8ib.8xlarge, r8id.8xlarge, r8idb.8xlarge, r8idn.8xlarge, r8in.8xlargei4g.8xlarge
RDSdb.r8a.8xlarge
OpenSearchi4i.8xlarge.search
Free Tiernono
Burstablenono
Hibernationnono
Instance StorageEBS only2 x 3750 NVMe SSD
EBS (Elastic Block Store)
EBS Optimizeddefaultdefault
Encryptionsupportedsupported
NVMerequiredrequired
Dedicated Throughput10000 MBps10000 MBps
Optimized Baseline Bandwidth10000 Mbps10000 Mbps
Optimized Baseline Throughput1250 Mbps1250 Mbps
Optimized Baseline Performance40000 IOPS40000 IOPS
Optimized Max Performance40000 IOPS40000 IOPS
Optimized Max Bandwidth10000 Mbps10000 Mbps
Optimized Max Throughput1250 Mbps1250 Mbps
Networking
Networking Performance15000 Megabit18750 Megabit
Enhanced Networkingyesyes
Max Interfaces108
Max Cards11
IPv4 Addresses per Interface4030
IPv6 Addresses per Interface4030
IPv6 Supportyesyes
ENA Supportrequiredrequired
EFA Supportnono
Encryption in Transit Supportyesyes
ENA SRD Supportnoyes
Avg Price Diff1.00x1.14x

Regional Prices

US Dollar ($)
Per Hour
Linux
Shared Tenancy
On Demand
Geography
Region
r8a.8xlarge
i4i.8xlarge
HiddenHidden (hidden-1)2.77522.8690
HiddenHidden (hidden-10)n/a3.0270
HiddenHidden (hidden-11)n/a3.1150
HiddenHidden (hidden-12)n/a3.1150
HiddenHidden (hidden-13)n/a3.1790
HiddenHidden (hidden-14)n/a3.1860
HiddenHidden (hidden-15)n/a3.1860
HiddenHidden (hidden-16)n/a3.1860
HiddenHidden (hidden-17)n/a3.2210
HiddenHidden (hidden-18)n/a3.2210
HiddenHidden (hidden-19)n/a3.2210
HiddenHidden (hidden-2)2.79952.8830
HiddenHidden (hidden-20)n/a3.2740
HiddenHidden (hidden-21)n/a3.2910
HiddenHidden (hidden-22)n/a3.2910
HiddenHidden (hidden-23)n/a3.2910
HiddenHidden (hidden-24)n/a3.2910
HiddenHidden (hidden-25)n/a3.3090
HiddenHidden (hidden-26)n/a3.3090
HiddenHidden (hidden-27)n/a3.3260
HiddenHidden (hidden-28)n/a3.3260
HiddenHidden (hidden-29)n/a3.4560
HiddenHidden (hidden-3)2.86032.8990
HiddenHidden (hidden-30)n/a3.6010
HiddenHidden (hidden-31)n/a3.6080
HiddenHidden (hidden-32)n/a3.6260
HiddenHidden (hidden-33)n/a4.3820
HiddenHidden (hidden-4)2.86032.9620
HiddenHidden (hidden-5)3.08352.9620
HiddenHidden (hidden-6)3.08353.0270
HiddenHidden (hidden-7)n/a3.0270
HiddenHidden (hidden-8)n/a3.0270
HiddenHidden (hidden-9)n/a3.0270
USUS East (Ohio) (us-east-2)2.55622.7460
USUS East (Virginia) (us-east-1)2.55622.7460
USUS West (Oregon) (us-west-2)2.55622.7460
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