r8i.12xlargevsr8ib.12xlarge

r8i.12xlarge is 34% cheaper than r8ib.12xlarge on demand in US East (N. Virginia), saving $1,231.29 a month.

At a glancer8i.12xlarger8ib.12xlarge
On-demand$3.334/hr34% less$5.021/hr
Lowest rate$0.7437/hr66% lessSpot, can be interrupted$2.17/hrSpot, can be interrupted
Size48 vCPUs, 384 GiB48 vCPUs, 384 GiB
ProcessorIntel Xeon Scalable (Granite Rapids)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.

Optionr8i.12xlarger8ib.12xlarger8ib.12xlarge vs r8i.12xlarge
On-demandPay by the hour$3.334$5.021▲ 51%
SpotCan be interrupted78% off$0.743757% off$2.17▲ 192%
1-yr savings planHourly commitment28% off$2.41628% off$3.638▲ 51%
3-yr savings planHourly commitment48% off$1.73953% off$2.342▲ 35%

Key differences

The biggest lead each one has.

Where r8i.12xlarge leads
On-demand price$3.334 vs $5.021 per hour
34% cheaper
Where r8ib.12xlarge leads
EBS baseline IOPS180,000 vs 60,000
3× higher
Network baseline50 Gbps vs 22.5 Gbps
2.2× higher

Specs

11 of 40 specs differ. Those are in bold.

ComputeAll 10 matchr8i.12xlarger8ib.12xlarge
vCPUs4848
Physical cores2424
Threads per core22
Architecturex86_64x86_64
ProcessorIntel Xeon Scalable (Granite Rapids)Intel Xeon Scalable (Granite Rapids)
CPU makerIntelIntel
Clock speed3.9 GHz3.9 GHz
Sustained clock3.9 GHz3.9 GHz
Processor featuresIntel AVX; Intel AVX2; Intel AVX512; Intel Turbo; Intel AMXIntel AVX; Intel AVX2; Intel AVX512; Intel Turbo; Intel AMX
BurstableNoNo
MemoryAll 1 matchr8i.12xlarger8ib.12xlarge
Memory (GiB)384384
Networking3 of 8 differr8i.12xlarger8ib.12xlarge
Network22500 Megabit50 Gigabit
Network baseline22.5 Gbps50 Gbps
Network peak22.5 Gbps50 Gbps
Enhanced networkingYes (ENA)Yes (ENA)
EFANoNo
IPv6YesYes
Max network interfaces1212
IPv4 addresses per interface5050
Storage7 of 11 differr8i.12xlarger8ib.12xlarge
StorageEBS onlyEBS only
EBS optimizedYesYes
EBS over NVMeRequiredRequired
EBS throughput15000 Mbps37500 Mbps
EBS baseline bandwidth15,000 Mbps37,500 Mbps
EBS max bandwidth15,000 Mbps37,500 Mbps
EBS baseline throughput1,875 MB/s4,687.5 MB/s
EBS max throughput1,875 MB/s4,687.5 MB/s
EBS baseline IOPS60,000180,000
EBS max IOPS60,000180,000
Max EBS volumes3232
Instance details1 of 10 differr8i.12xlarger8ib.12xlarge
Familyr8ir8ib
CategoryMemory optimizedMemory optimized
Current generationYesYes
Normalization factor9696
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 r8i.12xlarge first. Linux, USD per hour.

Regionr8i.12xlarger8ib.12xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$3.334$5.021▲ 51%
US East (Ohio)us-east-2$3.334$5.021▲ 51%
US West (Oregon)us-west-2$3.334$5.021▲ 51%
US West (N. California)us-west-1$3.704$6.025▲ 63%
EU (Ireland)eu-west-1$3.731$5.627▲ 51%
Europe (Spain)eu-south-2$3.731$5.627▲ 51%
Asia Pacific (Tokyo)ap-northeast-1$4.022$6.099▲ 52%
EU (Frankfurt)eu-central-1$4.022$5.998▲ 49%

Keep exploring

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

r8i.12xlargeMemory optimized, r8i family
r8i.12xlarge prices and specsEvery size in the r8i family

Compare r8i.12xlarge with

c8i.12xlargem8i.12xlarger8g.12xlarger8i-flex.12xlarger8a.12xlarger8id.12xlarger8idb.12xlarger8idn.12xlarger8in.12xlarger7i.12xlarge
r8ib.12xlargeMemory optimized, r8ib family
r8ib.12xlarge prices and specsEvery size in the r8ib family

Compare r8ib.12xlarge with

m8ib.12xlargec8ib.12xlarger8gb.12xlarger5b.12xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 48–53% 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.