r8gb.16xlargevsr8ib.16xlarge

r8gb.16xlarge is 13% cheaper than r8ib.16xlarge on demand in US East (N. Virginia), saving $631.16 a month. They use different processor architectures (arm64 and x86_64), so software built for one may need rebuilding to run on the other.

At a glancer8gb.16xlarger8ib.16xlarge
On-demand$5.83/hr13% less$6.694/hr
Lowest rate$1.294/hr41% lessSpot, can be interrupted$2.197/hrSpot, can be interrupted
Size64 vCPUs, 512 GiB64 vCPUs, 512 GiB
ProcessorAWS Graviton4 ProcessorIntel Xeon Scalable (Granite Rapids)
Architecturearm64x86_64

Prices in US East (N. Virginia)

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

Optionr8gb.16xlarger8ib.16xlarger8ib.16xlarge vs r8gb.16xlarge
On-demandPay by the hour$5.83$6.694▲ 15%
SpotCan be interrupted78% off$1.29467% off$2.197▲ 70%
1-yr savings planHourly commitment28% off$4.22428% off$4.85▲ 15%
3-yr savings planHourly commitment53% off$2.7253% off$3.123▲ 15%

Key differences

The biggest lead each one has.

Where r8gb.16xlarge leads
On-demand price$5.83 vs $6.694 per hour
13% cheaper
Network baseline133.333 Gbps vs 66.666 Gbps
2× higher
Physical cores64 vs 32
2× higher
EBS baseline bandwidth100,000 Mbps vs 50,000 Mbps
2× higher
Where r8ib.16xlarge leads
Clock speed3.9 GHz vs 2.8 GHz
39% higher
IPv4 addresses per interface64 vs 50
28% higher

Specs

22 of 40 specs differ. Those are in bold.

Compute8 of 10 differr8gb.16xlarger8ib.16xlarge
vCPUs6464
Physical cores6432
Threads per core12
Architecturearm64x86_64
ProcessorAWS Graviton4 ProcessorIntel Xeon Scalable (Granite Rapids)
CPU makerAWSIntel
Clock speed2.8 GHz3.9 GHz
Sustained clock2.8 GHz3.9 GHz
Processor features–Intel AVX; Intel AVX2; Intel AVX512; Intel Turbo; Intel AMX
BurstableNoNo
MemoryAll 1 matchr8gb.16xlarger8ib.16xlarge
Memory (GiB)512512
Networking5 of 8 differr8gb.16xlarger8ib.16xlarge
Network133.333 Gigabit66.66 Gigabit
Network baseline133.333 Gbps66.666 Gbps
Network peak133.333 Gbps66.666 Gbps
Enhanced networkingYes (ENA)Yes (ENA)
EFAYesNo
IPv6YesYes
Max network interfaces1616
IPv4 addresses per interface5064
Storage7 of 11 differr8gb.16xlarger8ib.16xlarge
StorageEBS onlyEBS only
EBS optimizedYesYes
EBS over NVMeRequiredRequired
EBS throughput100000 Mbps50000 Mbps
EBS baseline bandwidth100,000 Mbps50,000 Mbps
EBS max bandwidth100,000 Mbps50,000 Mbps
EBS baseline throughput12,500 MB/s6,250 MB/s
EBS max throughput12,500 MB/s6,250 MB/s
EBS baseline IOPS480,000240,000
EBS max IOPS480,000240,000
Max EBS volumes4848
Instance details2 of 10 differr8gb.16xlarger8ib.16xlarge
Familyr8gbr8ib
CategoryMemory optimizedMemory optimized
Current generationYesYes
Normalization factor128128
Bare metalNoNo
HypervisorNitroNitro
Placement groupsCluster, Partition, SpreadCluster, Partition, Spread
HibernationNoNo
Nitro EnclavesYesYes
Boot modesUEFILegacy BIOS, UEFI

On-demand prices by region

Cheapest for r8gb.16xlarge first. Linux, USD per hour.

Regionr8gb.16xlarger8ib.16xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$5.83$6.694▲ 15%
US West (Oregon)us-west-2$5.83$6.694▲ 15%

Keep exploring

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

r8gb.16xlargeMemory optimized, r8gb family
r8gb.16xlarge prices and specsEvery size in the r8gb family

Compare r8gb.16xlarge with

c8gb.16xlarger8g.16xlargem8gb.16xlarge
r8ib.16xlargeMemory optimized, r8ib family
r8ib.16xlarge prices and specsEvery size in the r8ib family

Compare r8ib.16xlarge with

r8i.16xlargem8ib.16xlargec8ib.16xlarger5b.16xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 53% 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.