c5a.4xlargevsc5ad.4xlarge

c5a.4xlarge is 10% cheaper than c5ad.4xlarge on demand in US East (N. Virginia), saving $52.56 a month.

At a glancec5a.4xlargec5ad.4xlarge
On-demand$0.616/hr10% less$0.688/hr
Lowest rate$0.2238/hr15% lessSpot, can be interrupted$0.2639/hrSpot, can be interrupted
Size16 vCPUs, 32 GiB16 vCPUs, 32 GiB
ProcessorAMD EPYC 7R32AMD EPYC 7R32
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.4xlargec5ad.4xlargec5ad.4xlarge vs c5a.4xlarge
On-demandPay by the hour$0.616$0.688▲ 12%
SpotCan be interrupted64% off$0.223862% off$0.2639▲ 18%
1-yr reservedNo upfront37% off$0.38837% off$0.433▲ 12%
3-yr reservedNo upfront57% off$0.26657% off$0.297▲ 12%
1-yr savings planHourly commitment27% off$0.44828% off$0.498▲ 11%
3-yr savings planHourly commitment52% off$0.29752% off$0.333▲ 12%

Key differences

The biggest lead each one has.

Where c5a.4xlarge leads
On-demand price$0.616 vs $0.688 per hour
10% cheaper
Max EBS volumes27 vs 25
8% higher
Where c5ad.4xlarge leads

No clear lead on the measures we compare.

Specs

4 of 41 specs differ. Those are in bold.

ComputeAll 10 matchc5a.4xlargec5ad.4xlarge
vCPUs1616
Physical cores88
Threads per core22
Architecturex86_64x86_64
ProcessorAMD EPYC 7R32AMD EPYC 7R32
CPU makerAMDAMD
Clock speed3.3 GHz3.3 GHz
Sustained clock3.3 GHz3.3 GHz
Processor featuresAMD Turbo; AVX; AVX2AMD Turbo; AVX; AVX2
BurstableNoNo
MemoryAll 1 matchc5a.4xlargec5ad.4xlarge
Memory (GiB)3232
NetworkingAll 8 matchc5a.4xlargec5ad.4xlarge
NetworkUp to 10 GigabitUp to 10 Gigabit
Network baseline5 Gbps5 Gbps
Network peak10 Gbps10 Gbps
Enhanced networkingYes (ENA)Yes (ENA)
EFANoNo
IPv6YesYes
Max network interfaces88
IPv4 addresses per interface3030
Storage3 of 12 differc5a.4xlargec5ad.4xlarge
StorageEBS only2 x 300 NVMe SSD
Local disks–2 × 300 GB SSD
EBS optimizedYesYes
EBS over NVMeRequiredRequired
EBS throughputUp to 3170 MbpsUp to 3170 Mbps
EBS baseline bandwidth1,580 Mbps1,580 Mbps
EBS max bandwidth3,170 Mbps3,170 Mbps
EBS baseline throughput197.5 MB/s197.5 MB/s
EBS max throughput396.25 MB/s396.25 MB/s
EBS baseline IOPS6,6006,600
EBS max IOPS13,30013,300
Max EBS volumes2725
Instance details1 of 10 differc5a.4xlargec5ad.4xlarge
Familyc5ac5ad
CategoryCompute optimizedCompute optimized
Current generationYesYes
Normalization factor3232
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.4xlarge first. Linux, USD per hour.

Regionc5a.4xlargec5ad.4xlargeDifference
US East (N. Virginia)Used in summaryus-east-1$0.616$0.688▲ 12%
US East (Ohio)us-east-2$0.616$0.688▲ 12%
US West (Oregon)us-west-2$0.616$0.688▲ 12%
EU (Ireland)eu-west-1$0.688$0.784▲ 14%
EU (Frankfurt)eu-central-1$0.696$0.8▲ 15%
Asia Pacific (Singapore)ap-southeast-1$0.704$0.808▲ 15%
EU (Milan)eu-south-1$0.728$0.824▲ 13%
Middle East (Bahrain)me-south-1$0.76$0.864▲ 14%
Asia Pacific (Sydney)ap-southeast-2$0.8$0.904▲ 13%
Africa (Cape Town)af-south-1$0.824$0.936▲ 14%
South America (Sao Paulo)sa-east-1$0.944$1.072▲ 14%

Keep exploring

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

c5a.4xlargeCompute optimized, c5a family
c5a.4xlarge prices and specsEvery size in the c5a family

Compare c5a.4xlarge with

c5.4xlargem5a.4xlarger5a.4xlargec6a.4xlarge
c5ad.4xlargeCompute optimized, c5ad family
c5ad.4xlarge prices and specsEvery size in the c5ad family

Compare c5ad.4xlarge with

c5d.4xlargem5ad.4xlarger5ad.4xlarge

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.