r5.16xlargevsr6i.16xlarge

r5.16xlarge and r6i.16xlarge cost the same on demand in US East (N. Virginia), $4.032 per hour.

At a glancer5.16xlarger6i.16xlarge
On-demand$4.032/hr$4.032/hr
Lowest rate$0.4179/hr50% lessSpot, can be interrupted$0.8317/hrSpot, can be interrupted
Size64 vCPUs, 512 GiB64 vCPUs, 512 GiB
ProcessorIntel Xeon Platinum 8175Intel Xeon 8375C (Ice Lake)
Architecturex86_64x86_64

Prices in US East (N. Virginia)

“Off” is the discount against each type’s own on-demand price. Linux, USD per hour.

Optionr5.16xlarger6i.16xlarger6i.16xlarge vs r5.16xlarge
On-demandPay by the hour$4.032$4.032Same
SpotCan be interrupted90% off$0.417979% off$0.8317▲ 99%
1-yr reservedNo upfront37% off$2.5434% off$2.667▲ 5%
3-yr reservedNo upfront57% off$1.74255% off$1.829▲ 5%
1-yr savings planHourly commitment28% off$2.92128% off$2.921Same
3-yr savings planHourly commitment48% off$2.10348% off$2.103Same

Key differences

The biggest lead each one has.

Where r5.16xlarge leads

No clear lead on the measures we compare.

Where r6i.16xlarge leads
EBS baseline bandwidth20,000 Mbps vs 13,600 Mbps
47% higher
Network baseline25 Gbps vs 20 Gbps
25% higher
Clock speed3.5 GHz vs 3.1 GHz
13% higher

Specs

15 of 41 specs differ. Those are in bold.

Compute4 of 11 differr5.16xlarger6i.16xlarge
vCPUs6464
Physical cores3232
Threads per core22
Architecturex86_64x86_64
ProcessorIntel Xeon Platinum 8175Intel Xeon 8375C (Ice Lake)
CPU makerIntelIntel
Clock speed3.1 GHz3.5 GHz
Sustained clock3.1 GHz3.5 GHz
Processor featuresIntel AVX; Intel AVX2; Intel AVX512; Intel TurboIntel AVX; Intel AVX2; Intel AVX512; Intel Turbo
BurstableNoNo
ECU256–
MemoryAll 1 matchr5.16xlarger6i.16xlarge
Memory (GiB)512512
Networking3 of 8 differr5.16xlarger6i.16xlarge
Network20 Gigabit25000 Megabit
Network baseline20 Gbps25 Gbps
Network peak20 Gbps25 Gbps
Enhanced networkingYes (ENA)Yes (ENA)
EFANoNo
IPv6YesYes
Max network interfaces1515
IPv4 addresses per interface5050
Storage7 of 11 differr5.16xlarger6i.16xlarge
StorageEBS onlyEBS only
EBS optimizedYesYes
EBS over NVMeRequiredRequired
EBS throughput13600 Mbps20000 Mbps
EBS baseline bandwidth13,600 Mbps20,000 Mbps
EBS max bandwidth13,600 Mbps20,000 Mbps
EBS baseline throughput1,700 MB/s2,500 MB/s
EBS max throughput1,700 MB/s2,500 MB/s
EBS baseline IOPS60,00080,000
EBS max IOPS60,00080,000
Max EBS volumes2727
Instance details1 of 10 differr5.16xlarger6i.16xlarge
Familyr5r6i
CategoryMemory optimizedMemory optimized
Current generationYesYes
Normalization factor128128
Bare metalNoNo
HypervisorNitroNitro
Placement groupsCluster, Partition, SpreadCluster, Partition, Spread
HibernationNoNo
Nitro EnclavesYesYes
Boot modesLegacy BIOS, UEFILegacy BIOS, UEFI

On-demand prices by region

Cheapest for r5.16xlarge first. Linux, USD per hour.

Regionr5.16xlarger6i.16xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$4.032$4.032Same
US East (Ohio)us-east-2$4.032$4.032Same
US West (Oregon)us-west-2$4.032$4.032Same
Asia Pacific (Hyderabad)ap-south-2$4.16$4.16Same
Asia Pacific (Mumbai)ap-south-1$4.16$4.16Same
EU (Stockholm)eu-north-1$4.288$4.288Same
Canada (Central)ca-central-1$4.416$4.416Same
Canada West (Calgary)ca-west-1$4.416$4.416Same
US West (N. California)us-west-1$4.48$4.48Same
EU (Ireland)eu-west-1$4.512$4.512Same
EU (London)eu-west-2$4.736$4.736Same
EU (Milan)eu-south-1$4.736$4.736Same
EU (Paris)eu-west-3$4.736$4.736Same
Israel (Tel Aviv)il-central-1$4.738$4.738Same
Asia Pacific (Sydney)ap-southeast-2$4.832$4.832Same
AWS GovCloud (US-East)us-gov-east-1$4.832$4.832Same
AWS GovCloud (US-West)us-gov-west-1$4.832$4.832Same
Asia Pacific (Osaka)ap-northeast-3$4.864$4.864Same
Asia Pacific (Seoul)ap-northeast-2$4.864$4.864Same
Asia Pacific (Singapore)ap-southeast-1$4.864$4.864Same
Asia Pacific (Tokyo)ap-northeast-1$4.864$4.864Same
EU (Frankfurt)eu-central-1$4.864$4.864Same
Middle East (Bahrain)me-south-1$4.963$4.963Same
Middle East (UAE)me-central-1$4.963$4.963Same
Asia Pacific (Hong Kong)ap-east-1$5.344$5.344Same
Europe (Zurich)eu-central-2$5.35$5.35Same
Africa (Cape Town)af-south-1$5.376$5.376Same
South America (Sao Paulo)sa-east-1$6.432$6.432Same

Keep exploring

Each type’s own page, and how it compares with others.

r5.16xlargeMemory optimized, r5 family
r5.16xlarge prices and specsEvery size in the r5 family

Compare r5.16xlarge with

m5.16xlarger5d.16xlarger5dn.16xlarger5n.16xlarger5a.16xlarger5b.16xlarger4.16xlarge
r6i.16xlargeMemory optimized, r6i family
r6i.16xlarge prices and specsEvery size in the r6i family

Compare r6i.16xlarge with

c6i.16xlargem6i.16xlarger6g.16xlarger6id.16xlarger6a.16xlarger6idn.16xlarger6in.16xlarger7i.16xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 55–57% below on-demand. Connect your cloud accounts to unlock greater savings with commitment protection.

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AWS EC2 Linux prices in USD. Monthly figures use 730 hours. Prices last updated 12 Nov 2026.