c5a.12xlargevsm5a.12xlarge

c5a.12xlarge is 10% cheaper than m5a.12xlarge on demand in US East (N. Virginia), saving $157.68 a month.

At a glancec5a.12xlargem5a.12xlarge
On-demand$1.848/hr10% less$2.064/hr
Lowest rate$0.5765/hr2% lessSpot, can be interrupted$0.5891/hrSpot, can be interrupted
Size48 vCPUs, 96 GiB48 vCPUs, 192 GiB
ProcessorAMD EPYC 7R32AMD EPYC 7571
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.

Optionc5a.12xlargem5a.12xlargem5a.12xlarge vs c5a.12xlarge
On-demandPay by the hour$1.848$2.064▲ 12%
SpotCan be interrupted69% off$0.576571% off$0.5891▲ 2%
1-yr reservedNo upfront37% off$1.16437% off$1.30▲ 12%
3-yr reservedNo upfront57% off$0.79857% off$0.892▲ 12%
1-yr savings planHourly commitment27% off$1.34327% off$1.511▲ 13%
3-yr savings planHourly commitment52% off$0.89249% off$1.043▲ 17%

Key differences

The biggest lead each one has.

Where c5a.12xlarge leads
On-demand price$1.848 vs $2.064 per hour
10% cheaper
Clock speed3.3 GHz vs 2.5 GHz
32% higher
Network baseline12 Gbps vs 10 Gbps
20% higher
Where m5a.12xlarge leads
Memory (GiB)192 vs 96
2× higher
EBS baseline IOPS30,000 vs 20,000
50% higher

Specs

17 of 40 specs differ. Those are in bold.

Compute4 of 10 differc5a.12xlargem5a.12xlarge
vCPUs4848
Physical cores2424
Threads per core22
Architecturex86_64x86_64
ProcessorAMD EPYC 7R32AMD EPYC 7571
CPU makerAMDAMD
Clock speed3.3 GHz2.5 GHz
Sustained clock3.3 GHz2.5 GHz
Processor featuresAMD Turbo; AVX; AVX2AVX; AVX2; AMD Turbo
BurstableNoNo
Memory1 of 1 differc5a.12xlargem5a.12xlarge
Memory (GiB)96192
Networking3 of 8 differc5a.12xlargem5a.12xlarge
Network12 Gigabit10 Gigabit
Network baseline12 Gbps10 Gbps
Network peak12 Gbps10 Gbps
Enhanced networkingYes (ENA)Yes (ENA)
EFANoNo
IPv6YesYes
Max network interfaces88
IPv4 addresses per interface3030
Storage7 of 11 differc5a.12xlargem5a.12xlarge
StorageEBS onlyEBS only
EBS optimizedYesYes
EBS over NVMeRequiredRequired
EBS throughput4750 Mbps5000 Mbps
EBS baseline bandwidth4,750 Mbps6,780 Mbps
EBS max bandwidth4,750 Mbps6,780 Mbps
EBS baseline throughput593.75 MB/s847.5 MB/s
EBS max throughput593.75 MB/s847.5 MB/s
EBS baseline IOPS20,00030,000
EBS max IOPS20,00030,000
Max EBS volumes2727
Instance details2 of 10 differc5a.12xlargem5a.12xlarge
Familyc5am5a
CategoryCompute optimizedGeneral purpose
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 c5a.12xlarge first. Linux, USD per hour.

Regionc5a.12xlargem5a.12xlargeDifference
Asia Pacific (Mumbai)ap-south-1$1.128$1.333▲ 18%
US East (N. Virginia)Used in summaryus-east-1$1.848$2.064▲ 12%
US East (Ohio)us-east-2$1.848$2.064▲ 12%
US West (Oregon)us-west-2$1.848$2.064▲ 12%
Canada (Central)ca-central-1$2.016$2.304▲ 14%
Asia Pacific (Seoul)ap-northeast-2$2.064$2.544▲ 23%
EU (Ireland)eu-west-1$2.064$2.304▲ 12%
EU (Frankfurt)eu-central-1$2.088$2.496▲ 20%
Asia Pacific (Singapore)ap-southeast-1$2.112$2.592▲ 23%
EU (London)eu-west-2$2.184$2.40▲ 10%
EU (Milan)eu-south-1$2.184$2.424▲ 11%
EU (Paris)eu-west-3$2.184$2.424▲ 11%
AWS GovCloud (US-East)us-gov-east-1$2.208$2.616▲ 18%
AWS GovCloud (US-West)us-gov-west-1$2.208$2.616▲ 18%
US West (N. California)us-west-1$2.28$2.424▲ 6%
Asia Pacific (Tokyo)ap-northeast-1$2.304$2.688▲ 17%
Asia Pacific (Sydney)ap-southeast-2$2.40$2.592▲ 8%
South America (Sao Paulo)sa-east-1$2.832$3.312▲ 17%

Keep exploring

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

c5a.12xlargeCompute optimized, c5a family
c5a.12xlarge prices and specsEvery size in the c5a family

Compare c5a.12xlarge with

c5.12xlargec5ad.12xlarger5a.12xlargec6a.12xlarge
m5a.12xlargeGeneral purpose, m5a family
m5a.12xlarge prices and specsEvery size in the m5a family

Compare m5a.12xlarge with

m5.12xlargem5ad.12xlarger5a.12xlargem6a.12xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 57% 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.