r5b.large vs r8a.large

Instance Typer5b.larger8a.large
Instance FamilyMemory optimizedMemory 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
5 – Generation
b – EBS optimized
large – 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
8 – Generation
a – AMD processor
large – Size
vCPUs22
Memory16 GiB16 GiB
CPU Architecturex86_64x86_64
ProcessorIntel Xeon Platinum 8259 (Cascade Lake)AMD EPYC 9R45 Processor
Clock Speed3.1 GHz4.5 GHz
Threads Per Core21
Accelerators
GPUnono
Inference Acceleratornono
FPGAnono
Instances
Sizesr5b.12xlarge, r5b.16xlarge, r5b.24xlarge, r5b.2xlarge, r5b.4xlarge, r5b.8xlarge, r5b.large, r5b.metal, r5b.xlarger8a.12xlarge, r8a.16xlarge, r8a.24xlarge, r8a.2xlarge, r8a.48xlarge, r8a.4xlarge, r8a.8xlarge, r8a.large, r8a.medium, r8a.metal-24xl, r8a.metal-48xl, r8a.xlarge
Generationsr5b.large, r8ib.larger5a.large, r6a.large, r7a.large, r8a.large
Variantsr5.large, r5a.large, r5ad.large, r5d.large, r5dn.large, r5n.larger8g.large, r8gb.large, r8gd.large, r8gn.large, r8i-flex.large, r8i.large, r8ib.large, r8id.large, r8idb.large, r8idn.large, r8in.large
RDSdb.r5b.large, db.r5b.large.tpc1.mem2xdb.r8a.large
Free Tiernono
Burstablenono
Hibernationnoyes
Instance StorageEBS onlyEBS only
EBS (Elastic Block Store)
EBS Optimizeddefaultdefault
Encryptionsupportedsupported
NVMerequiredrequired
Dedicated Throughputup to 10240 MBpsup to 10000 MBps
Optimized Baseline Bandwidth1250 Mbps650 Mbps
Optimized Baseline Throughput156.25 Mbps81.25 Mbps
Optimized Baseline Performance5417 IOPS3600 IOPS
Optimized Max Performance43333 IOPS40000 IOPS
Optimized Max Bandwidth10000 Mbps10000 Mbps
Optimized Max Throughput1250 Mbps1250 Mbps
Networking
Networking PerformanceUp to 10 GigabitUp to 15000 Megabit
Enhanced Networkingyesyes
Max Interfaces33
Max Cards11
IPv4 Addresses per Interface1020
IPv6 Addresses per Interface1020
IPv6 Supportyesyes
ENA Supportrequiredrequired
EFA Supportnono
Encryption in Transit Supportnoyes
ENA SRD Supportnono
Avg Price Diff1.00x1.01x

Regional Prices

US Dollar ($)
Per Hour
Linux
Shared Tenancy
On Demand
Geography
Region
r5b.large
r8a.large
HiddenHidden (hidden-1)0.15790.1750
HiddenHidden (hidden-10)0.1810n/a
HiddenHidden (hidden-11)0.2370n/a
HiddenHidden (hidden-2)0.16300.1788
HiddenHidden (hidden-3)0.16700.1788
HiddenHidden (hidden-4)0.17500.1927
HiddenHidden (hidden-5)0.17500.1927
HiddenHidden (hidden-6)0.1780n/a
HiddenHidden (hidden-7)0.1780n/a
HiddenHidden (hidden-8)0.1780n/a
HiddenHidden (hidden-9)0.1810n/a
USUS East (Ohio) (us-east-2)0.14900.1598
USUS East (Virginia) (us-east-1)0.14900.1598
USUS West (Oregon) (us-west-2)0.14900.1598
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