r5b.largevsr8ib.large

r5b.large is 29% cheaper than r8ib.large on demand in US East (N. Virginia), saving $43.95 a month.

At a glancer5b.larger8ib.large
On-demand$0.149/hr29% less$0.2092/hr
Lowest rate$0.0394/hr24% lessSpot, can be interrupted$0.0521/hrSpot, can be interrupted
Size2 vCPUs, 16 GiB2 vCPUs, 16 GiB
ProcessorIntel Xeon Platinum 8259 (Cascade Lake)Intel Xeon Scalable (Granite Rapids)
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.

Optionr5b.larger8ib.larger8ib.large vs r5b.large
On-demandPay by the hour$0.149$0.2092▲ 40%
SpotCan be interrupted74% off$0.039475% off$0.0521▲ 32%
1-yr reservedNo upfront37% off$0.0939——
3-yr reservedNo upfront60% off$0.0603——
1-yr savings planHourly commitment28% off$0.10828% off$0.1516▲ 40%
3-yr savings planHourly commitment53% off$0.069553% off$0.0976▲ 40%

Key differences

The biggest lead each one has.

Where r5b.large leads
On-demand price$0.149 vs $0.2092 per hour
29% cheaper
Where r8ib.large leads
Network baseline2.083 Gbps vs 0.75 Gbps
2.8× higher
EBS max IOPS120,000 vs 43,333
2.8× higher
Clock speed3.9 GHz vs 3.1 GHz
26% higher

Specs

19 of 40 specs differ. Those are in bold.

Compute4 of 10 differr5b.larger8ib.large
vCPUs22
Physical cores11
Threads per core22
Architecturex86_64x86_64
ProcessorIntel Xeon Platinum 8259 (Cascade Lake)Intel Xeon Scalable (Granite Rapids)
CPU makerIntelIntel
Clock speed3.1 GHz3.9 GHz
Sustained clock3.1 GHz3.9 GHz
Processor featuresIntel AVX; Intel AVX2; Intel AVX512; Intel TurboIntel AVX; Intel AVX2; Intel AVX512; Intel Turbo; Intel AMX
BurstableNoNo
MemoryAll 1 matchr5b.larger8ib.large
Memory (GiB)1616
Networking5 of 8 differr5b.larger8ib.large
NetworkUp to 10 GigabitUp to 16.66 Gigabit
Network baseline0.75 Gbps2.083 Gbps
Network peak10 Gbps16.667 Gbps
Enhanced networkingYes (ENA)Yes (ENA)
EFANoNo
IPv6YesYes
Max network interfaces34
IPv4 addresses per interface1020
Storage8 of 11 differr5b.larger8ib.large
StorageEBS onlyEBS only
EBS optimizedYesYes
EBS over NVMeRequiredRequired
EBS throughputUp to 10 GbpsUp to 25000 Mbps
EBS baseline bandwidth1,250 Mbps1,563 Mbps
EBS max bandwidth10,000 Mbps25,000 Mbps
EBS baseline throughput156.25 MB/s195.375 MB/s
EBS max throughput1,250 MB/s3,125 MB/s
EBS baseline IOPS5,4177,500
EBS max IOPS43,333120,000
Max EBS volumes2732
Instance details2 of 10 differr5b.larger8ib.large
Familyr5br8ib
CategoryMemory optimizedMemory optimized
Current generationYesYes
Normalization factor44
Bare metalNoNo
HypervisorNitroNitro
Placement groupsCluster, Partition, SpreadCluster, Partition, Spread
HibernationNoYes
Nitro EnclavesNoNo
Boot modesLegacy BIOS, UEFILegacy BIOS, UEFI

On-demand prices by region

Cheapest for r5b.large first. Linux, USD per hour.

Regionr5b.larger8ib.largeDifference
US East (N. Virginia)Used in summaryus-east-1$0.149$0.2092▲ 40%
US East (Ohio)us-east-2$0.149$0.2092▲ 40%
US West (Oregon)us-west-2$0.149$0.2092▲ 40%
EU (Ireland)eu-west-1$0.167$0.2345▲ 40%
EU (Frankfurt)eu-central-1$0.178$0.2499▲ 40%
Asia Pacific (Tokyo)ap-northeast-1$0.181$0.2541▲ 40%

Keep exploring

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

r5b.largeMemory optimized, r5b family
r5b.large prices and specsEvery size in the r5b family

Compare r5b.large with

r5.large
r8ib.largeMemory optimized, r8ib family
r8ib.large prices and specsEvery size in the r8ib family

Compare r8ib.large with

r8i.largem8ib.largec8ib.larger8gb.large

Pay the committed rate, with commitment protection

The best committed rate on these two is 53–60% 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.