c6i.xlarge vs r8i.xlarge

Instance Typec6i.xlarger8i.xlarge
Instance FamilyCompute optimizedMemory optimized
DetailsHigh-performance web servers, scientific modeling, batch processing, distributed analytics, HPC, machine/deep learning inference, ad serving, scalable multiplayer gaming, and video encoding.

c – Compute optimized
6 – Generation
i – Intel processor
xlarge – 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
i – Intel processor
xlarge – Size
vCPUs44
Memory8 GiB32 GiB
CPU Architecturex86_64x86_64
ProcessorIntel Xeon 8375C (Ice Lake)Intel Xeon Scalable (Granite Rapids)
Clock Speed3.5 GHz3.9 GHz
Threads Per Core22
Accelerators
GPUnono
Inference Acceleratornono
FPGAnono
Instances
Sizesc6i.12xlarge, c6i.16xlarge, c6i.24xlarge, c6i.2xlarge, c6i.32xlarge, c6i.4xlarge, c6i.8xlarge, c6i.large, c6i.metal, c6i.xlarger8i.12xlarge, r8i.16xlarge, r8i.24xlarge, r8i.2xlarge, r8i.32xlarge, r8i.48xlarge, r8i.4xlarge, r8i.8xlarge, r8i.96xlarge, r8i.large, r8i.metal-48xl, r8i.metal-96xl, r8i.xlarge
Generationsc6i.xlarge, c7i.xlarge, c8i.xlarger6i.xlarge, r7i.xlarge, r8i.xlarge
Variantsc6a.xlarge, c6g.xlarge, c6gd.xlarge, c6gn.xlarge, c6id.xlarge, c6in.xlarger8a.xlarge, r8g.xlarge, r8gb.xlarge, r8gd.xlarge, r8gn.xlarge, r8i-flex.xlarge, r8ib.xlarge, r8id.xlarge, r8idb.xlarge, r8idn.xlarge, r8in.xlarge
SageMakerml.c6i.xlarge
RDSdb.r8i.xlarge
Free Tiernono
Burstablenono
Hibernationyesyes
Instance StorageEBS onlyEBS only
EBS (Elastic Block Store)
EBS Optimizeddefaultdefault
Encryptionsupportedsupported
NVMerequiredrequired
Dedicated Throughputup to 10000 MBpsup to 10000 MBps
Optimized Baseline Bandwidth1250 Mbps1250 Mbps
Optimized Baseline Throughput156.25 Mbps156.25 Mbps
Optimized Baseline Performance6000 IOPS6000 IOPS
Optimized Max Performance40000 IOPS40000 IOPS
Optimized Max Bandwidth10000 Mbps10000 Mbps
Optimized Max Throughput1250 Mbps1250 Mbps
Networking
Networking PerformanceUp to 12500 MegabitUp to 12500 Megabit
Enhanced Networkingyesyes
Max Interfaces44
Max Cards11
IPv4 Addresses per Interface1530
IPv6 Addresses per Interface1530
IPv6 Supportyesyes
ENA Supportrequiredrequired
EFA Supportnono
Encryption in Transit Supportyesyes
ENA SRD Supportnono
Avg Price Diff1.00x1.64x

Regional Prices

Geography
Region
c6i.xlarge
r8i.xlarge
Asia PacificAsia Pacific (Malaysia) (ap-southeast-5)0.1666n/a
Asia PacificAsia Pacific (Mumbai) (ap-south-1)0.1700n/a
Asia PacificAsia Pacific (Thailand) (ap-southeast-7)0.1666n/a
HiddenHidden (hidden-1)0.17000.2849
HiddenHidden (hidden-10)0.19150.3330
HiddenHidden (hidden-11)0.19200.3330
HiddenHidden (hidden-12)0.19260.3330
HiddenHidden (hidden-13)0.19400.3352
HiddenHidden (hidden-14)0.19600.3352
HiddenHidden (hidden-15)0.20200.3352
HiddenHidden (hidden-16)0.20200.3352
HiddenHidden (hidden-17)0.20200.3420
HiddenHidden (hidden-18)0.20400.3496
HiddenHidden (hidden-19)0.20400.3704
HiddenHidden (hidden-2)0.17000.2867
HiddenHidden (hidden-20)0.21120.4432
HiddenHidden (hidden-21)0.2120n/a
HiddenHidden (hidden-22)0.2140n/a
HiddenHidden (hidden-23)0.2140n/a
HiddenHidden (hidden-24)0.2160n/a
HiddenHidden (hidden-25)0.2220n/a
HiddenHidden (hidden-26)0.2280n/a
HiddenHidden (hidden-27)0.2331n/a
HiddenHidden (hidden-28)0.2620n/a
HiddenHidden (hidden-3)0.17000.2867
HiddenHidden (hidden-4)0.17000.3043
HiddenHidden (hidden-5)0.17850.3087
HiddenHidden (hidden-6)0.18200.3109
HiddenHidden (hidden-7)0.18240.3109
HiddenHidden (hidden-8)0.18600.3263
HiddenHidden (hidden-9)0.18600.3263
USUS East (Ohio) (us-east-2)n/a0.2778
USUS East (Virginia) (us-east-1)n/a0.2778
USUS West (Oregon) (us-west-2)n/a0.2778
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