c8gb.12xlargevsc8ib.12xlarge

c8gb.12xlarge is 13% cheaper than c8ib.12xlarge on demand in US East (N. Virginia), saving $307.99 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 glancec8gb.12xlargec8ib.12xlarge
On-demand$2.844/hr13% less$3.266/hr
Lowest rate$0.9077/hr18% lessSpot, can be interrupted$1.102/hrSpot, can be interrupted
Size48 vCPUs, 96 GiB48 vCPUs, 96 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.

Optionc8gb.12xlargec8ib.12xlargec8ib.12xlarge vs c8gb.12xlarge
On-demandPay by the hour$2.844$3.266▲ 15%
SpotCan be interrupted68% off$0.907766% off$1.102▲ 21%
1-yr savings planHourly commitment28% off$2.06128% off$2.366▲ 15%
3-yr savings planHourly commitment58% off$1.18958% off$1.366▲ 15%

Key differences

The biggest lead each one has.

Where c8gb.12xlarge leads
On-demand price$2.844 vs $3.266 per hour
13% cheaper
Physical cores48 vs 24
2× higher
Network baseline100 Gbps vs 50 Gbps
2× higher
EBS baseline bandwidth75,000 Mbps vs 37,500 Mbps
2× higher
Where c8ib.12xlarge leads
IPv4 addresses per interface50 vs 30
67% higher
Clock speed3.9 GHz vs 2.8 GHz
39% higher

Specs

21 of 40 specs differ. Those are in bold.

Compute8 of 10 differc8gb.12xlargec8ib.12xlarge
vCPUs4848
Physical cores4824
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 matchc8gb.12xlargec8ib.12xlarge
Memory (GiB)9696
Networking4 of 8 differc8gb.12xlargec8ib.12xlarge
Network100 Gigabit50 Gigabit
Network baseline100 Gbps50 Gbps
Network peak100 Gbps50 Gbps
Enhanced networkingYes (ENA)Yes (ENA)
EFANoNo
IPv6YesYes
Max network interfaces1212
IPv4 addresses per interface3050
Storage7 of 11 differc8gb.12xlargec8ib.12xlarge
StorageEBS onlyEBS only
EBS optimizedYesYes
EBS over NVMeRequiredRequired
EBS throughput75000 Mbps37500 Mbps
EBS baseline bandwidth75,000 Mbps37,500 Mbps
EBS max bandwidth75,000 Mbps37,500 Mbps
EBS baseline throughput9,375 MB/s4,687.5 MB/s
EBS max throughput9,375 MB/s4,687.5 MB/s
EBS baseline IOPS360,000180,000
EBS max IOPS360,000180,000
Max EBS volumes3232
Instance details2 of 10 differc8gb.12xlargec8ib.12xlarge
Familyc8gbc8ib
CategoryCompute optimizedCompute optimized
Current generationYesYes
Normalization factor9696
Bare metalNoNo
HypervisorNitroNitro
Placement groupsCluster, Partition, SpreadCluster, Partition, Spread
HibernationYesYes
Nitro EnclavesYesYes
Boot modesUEFILegacy BIOS, UEFI

On-demand prices by region

Cheapest for c8gb.12xlarge first. Linux, USD per hour.

Regionc8gb.12xlargec8ib.12xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$2.844$3.266▲ 15%
US West (Oregon)us-west-2$2.844$3.266▲ 15%

Keep exploring

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

c8gb.12xlargeCompute optimized, c8gb family
c8gb.12xlarge prices and specsEvery size in the c8gb family

Compare c8gb.12xlarge with

c8g.12xlargem8gb.12xlarger8gb.12xlarge
c8ib.12xlargeCompute optimized, c8ib family
c8ib.12xlarge prices and specsEvery size in the c8ib family

Compare c8ib.12xlarge with

c8i.12xlargem8ib.12xlarger8ib.12xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 58% 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.