c6a.12xlargevsc7a.12xlarge

c6a.12xlarge is 25% cheaper than c7a.12xlarge on demand in US East (N. Virginia), saving $458.00 a month.

At a glancec6a.12xlargec7a.12xlarge
On-demand$1.836/hr25% less$2.463/hr
Lowest rate$0.6006/hrSpot, can be interrupted$0.5961/hr1% lessSpot, can be interrupted
Size48 vCPUs, 96 GiB48 vCPUs, 96 GiB
ProcessorAMD EPYC 7R13 ProcessorAMD EPYC 9R14 Processor
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.

Optionc6a.12xlargec7a.12xlargec7a.12xlarge vs c6a.12xlarge
On-demandPay by the hour$1.836$2.463▲ 34%
SpotCan be interrupted67% off$0.600676% off$0.5961▼ 1%
1-yr reservedNo upfront34% off$1.21434% off$1.629▲ 34%
3-yr reservedNo upfront56% off$0.808356% off$1.085▲ 34%
1-yr savings planHourly commitment28% off$1.32728% off$1.78▲ 34%
3-yr savings planHourly commitment52% off$0.886552% off$1.189▲ 34%

Key differences

The biggest lead each one has.

Where c6a.12xlarge leads
On-demand price$1.836 vs $2.463 per hour
25% cheaper
Where c7a.12xlarge leads
Physical cores48 vs 24
2× higher
Max EBS volumes32 vs 27
19% higher

Specs

10 of 40 specs differ. Those are in bold.

Compute6 of 10 differc6a.12xlargec7a.12xlarge
vCPUs4848
Physical cores2448
Threads per core21
Architecturex86_64x86_64
ProcessorAMD EPYC 7R13 ProcessorAMD EPYC 9R14 Processor
CPU makerAMDAMD
Clock speed3.6 GHzUp to 3.7 GHz
Sustained clock3.6 GHz3.7 GHz
Processor featuresAMD Turbo; AVX; AVX2AMD Turbo; AVX; AVX2; AVX512
BurstableNoNo
MemoryAll 1 matchc6a.12xlargec7a.12xlarge
Memory (GiB)9696
NetworkingAll 8 matchc6a.12xlargec7a.12xlarge
Network18750 Megabit18750 Megabit
Network baseline18.75 Gbps18.75 Gbps
Network peak18.75 Gbps18.75 Gbps
Enhanced networkingYes (ENA)Yes (ENA)
EFANoNo
IPv6YesYes
Max network interfaces88
IPv4 addresses per interface3030
Storage2 of 11 differc6a.12xlargec7a.12xlarge
StorageEBS onlyEBS only
EBS optimizedYesYes
EBS over NVMeRequiredRequired
EBS throughput10000 Mbps15000 Mbps
EBS baseline bandwidth15,000 Mbps15,000 Mbps
EBS max bandwidth15,000 Mbps15,000 Mbps
EBS baseline throughput1,875 MB/s1,875 MB/s
EBS max throughput1,875 MB/s1,875 MB/s
EBS baseline IOPS60,00060,000
EBS max IOPS60,00060,000
Max EBS volumes2732
Instance details2 of 10 differc6a.12xlargec7a.12xlarge
Familyc6ac7a
CategoryCompute optimizedCompute optimized
Current generationYesYes
Normalization factor9696
Bare metalNoNo
HypervisorNitroNitro
Placement groupsCluster, Partition, SpreadCluster, Partition, Spread
HibernationNoYes
Nitro EnclavesYesYes
Boot modesLegacy BIOS, UEFILegacy BIOS, UEFI

On-demand prices by region

Cheapest for c6a.12xlarge first. Linux, USD per hour.

Regionc6a.12xlargec7a.12xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$1.836$2.463▲ 34%
US East (Ohio)us-east-2$1.836$2.463▲ 34%
US West (Oregon)us-west-2$1.836$2.463▲ 34%
EU (Ireland)eu-west-1$1.97$2.643▲ 34%
EU (Frankfurt)eu-central-1$2.095$2.811▲ 34%
Asia Pacific (Singapore)ap-southeast-1$2.117$2.84▲ 34%
EU (London)eu-west-2$2.182$2.927▲ 34%
US West (N. California)us-west-1$2.29$3.072▲ 34%
Asia Pacific (Tokyo)ap-northeast-1$2.311$3.101▲ 34%

Keep exploring

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

c6a.12xlargeCompute optimized, c6a family
c6a.12xlarge prices and specsEvery size in the c6a family

Compare c6a.12xlarge with

c6g.12xlargec6i.12xlargem6a.12xlarger6a.12xlargec5a.12xlarge
c7a.12xlargeCompute optimized, c7a family
c7a.12xlarge prices and specsEvery size in the c7a family

Compare c7a.12xlarge with

c7g.12xlargec7i.12xlargem7a.12xlarger7a.12xlargec8a.12xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 56% 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.