r8gb.4xlargevsr8ib.4xlarge

r8gb.4xlarge is 13% cheaper than r8ib.4xlarge on demand in US East (N. Virginia), saving $157.83 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.4xlarger8ib.4xlarge
On-demand$1.457/hr13% less$1.674/hr
Lowest rate$0.3809/hr58% lessSpot, can be interrupted$0.9002/hrSpot, can be interrupted
Size16 vCPUs, 128 GiB16 vCPUs, 128 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.4xlarger8ib.4xlarger8ib.4xlarge vs r8gb.4xlarge
On-demandPay by the hour$1.457$1.674▲ 15%
SpotCan be interrupted74% off$0.380946% off$0.9002▲ 136%
1-yr savings planHourly commitment28% off$1.05628% off$1.212▲ 15%
3-yr savings planHourly commitment53% off$0.6853% off$0.7808▲ 15%

Key differences

The biggest lead each one has.

Where r8gb.4xlarge leads
On-demand price$1.457 vs $1.674 per hour
13% cheaper
Network baseline33.333 Gbps vs 16.666 Gbps
2× higher
Physical cores16 vs 8
2× higher
EBS baseline bandwidth25,000 Mbps vs 12,500 Mbps
2× higher
Where r8ib.4xlarge leads
IPv4 addresses per interface50 vs 30
67% higher
Clock speed3.9 GHz vs 2.8 GHz
39% higher

Specs

17 of 40 specs differ. Those are in bold.

Compute8 of 10 differr8gb.4xlarger8ib.4xlarge
vCPUs1616
Physical cores168
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.4xlarger8ib.4xlarge
Memory (GiB)128128
Networking3 of 8 differr8gb.4xlarger8ib.4xlarge
Network33.333 GigabitUp to 33.33 Gigabit
Network baseline33.333 Gbps16.666 Gbps
Network peak33.333 Gbps33.333 Gbps
Enhanced networkingYes (ENA)Yes (ENA)
EFANoNo
IPv6YesYes
Max network interfaces88
IPv4 addresses per interface3050
Storage4 of 11 differr8gb.4xlarger8ib.4xlarge
StorageEBS onlyEBS only
EBS optimizedYesYes
EBS over NVMeRequiredRequired
EBS throughput25000 MbpsUp to 25000 Mbps
EBS baseline bandwidth25,000 Mbps12,500 Mbps
EBS max bandwidth25,000 Mbps25,000 Mbps
EBS baseline throughput3,125 MB/s1,562.5 MB/s
EBS max throughput3,125 MB/s3,125 MB/s
EBS baseline IOPS120,00060,000
EBS max IOPS120,000120,000
Max EBS volumes3232
Instance details2 of 10 differr8gb.4xlarger8ib.4xlarge
Familyr8gbr8ib
CategoryMemory optimizedMemory optimized
Current generationYesYes
Normalization factor3232
Bare metalNoNo
HypervisorNitroNitro
Placement groupsCluster, Partition, SpreadCluster, Partition, Spread
HibernationYesYes
Nitro EnclavesYesYes
Boot modesUEFILegacy BIOS, UEFI

On-demand prices by region

Cheapest for r8gb.4xlarge first. Linux, USD per hour.

Regionr8gb.4xlarger8ib.4xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$1.457$1.674▲ 15%
US West (Oregon)us-west-2$1.457$1.674▲ 15%

Keep exploring

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

r8gb.4xlargeMemory optimized, r8gb family
r8gb.4xlarge prices and specsEvery size in the r8gb family

Compare r8gb.4xlarge with

c8gb.4xlarger8g.4xlargem8gb.4xlarge
r8ib.4xlargeMemory optimized, r8ib family
r8ib.4xlarge prices and specsEvery size in the r8ib family

Compare r8ib.4xlarge with

r8i.4xlargem8ib.4xlargec8ib.4xlarger5b.4xlarge

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.