c5a.4xlargevsc6a.4xlarge

c6a.4xlarge is 1% cheaper than c5a.4xlarge on demand in US East (N. Virginia), saving $2.92 a month.

At a glancec5a.4xlargec6a.4xlarge
On-demand$0.616/hr$0.612/hr1% less
Lowest rate$0.2238/hr5% lessSpot, can be interrupted$0.2362/hrSpot, can be interrupted
Size16 vCPUs, 32 GiB16 vCPUs, 32 GiB
ProcessorAMD EPYC 7R32AMD EPYC 7R13 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.

Optionc5a.4xlargec6a.4xlargec6a.4xlarge vs c5a.4xlarge
On-demandPay by the hour$0.616$0.612▼ 1%
SpotCan be interrupted64% off$0.223861% off$0.2362▲ 6%
1-yr reservedNo upfront37% off$0.38834% off$0.4048▲ 4%
3-yr reservedNo upfront57% off$0.26656% off$0.2694▲ 1%
1-yr savings planHourly commitment27% off$0.44828% off$0.4423▼ 1%
3-yr savings planHourly commitment52% off$0.29752% off$0.2955▼ 1%

Key differences

The biggest lead each one has.

Where c5a.4xlarge leads

No clear lead on the measures we compare.

Where c6a.4xlarge leads
On-demand price$0.612 vs $0.616 per hour
1% cheaper
EBS baseline bandwidth5,000 Mbps vs 1,580 Mbps
3.2× higher
Network baseline6.25 Gbps vs 5 Gbps
25% higher
Clock speed3.6 GHz vs 3.3 GHz
9% higher

Specs

15 of 40 specs differ. Those are in bold.

Compute3 of 10 differc5a.4xlargec6a.4xlarge
vCPUs1616
Physical cores88
Threads per core22
Architecturex86_64x86_64
ProcessorAMD EPYC 7R32AMD EPYC 7R13 Processor
CPU makerAMDAMD
Clock speed3.3 GHz3.6 GHz
Sustained clock3.3 GHz3.6 GHz
Processor featuresAMD Turbo; AVX; AVX2AMD Turbo; AVX; AVX2
BurstableNoNo
MemoryAll 1 matchc5a.4xlargec6a.4xlarge
Memory (GiB)3232
Networking3 of 8 differc5a.4xlargec6a.4xlarge
NetworkUp to 10 GigabitUp to 12500 Megabit
Network baseline5 Gbps6.25 Gbps
Network peak10 Gbps12.5 Gbps
Enhanced networkingYes (ENA)Yes (ENA)
EFANoNo
IPv6YesYes
Max network interfaces88
IPv4 addresses per interface3030
Storage7 of 11 differc5a.4xlargec6a.4xlarge
StorageEBS onlyEBS only
EBS optimizedYesYes
EBS over NVMeRequiredRequired
EBS throughputUp to 3170 MbpsUp to 6667 Mbps
EBS baseline bandwidth1,580 Mbps5,000 Mbps
EBS max bandwidth3,170 Mbps10,000 Mbps
EBS baseline throughput197.5 MB/s625 MB/s
EBS max throughput396.25 MB/s1,250 MB/s
EBS baseline IOPS6,60020,000
EBS max IOPS13,30040,000
Max EBS volumes2727
Instance details2 of 10 differc5a.4xlargec6a.4xlarge
Familyc5ac6a
CategoryCompute optimizedCompute optimized
Current generationYesYes
Normalization factor3232
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 c5a.4xlarge first. Linux, USD per hour.

Regionc5a.4xlargec6a.4xlargeDifference
Asia Pacific (Mumbai)ap-south-1$0.376$0.374▼ 1%
US East (N. Virginia)Used in summaryus-east-1$0.616$0.612▼ 1%
US East (Ohio)us-east-2$0.616$0.612▼ 1%
US West (Oregon)us-west-2$0.616$0.612▼ 1%
Canada (Central)ca-central-1$0.672$0.6696Same
EU (Ireland)eu-west-1$0.688$0.6566▼ 5%
EU (Frankfurt)eu-central-1$0.696$0.6984Same
Asia Pacific (Singapore)ap-southeast-1$0.704$0.7056Same
EU (London)eu-west-2$0.728$0.7272Same
US West (N. California)us-west-1$0.76$0.7632Same
Asia Pacific (Tokyo)ap-northeast-1$0.768$0.7704Same
Asia Pacific (Hong Kong)ap-east-1$0.776$0.7776Same
Asia Pacific (Sydney)ap-southeast-2$0.8$0.7992Same
South America (Sao Paulo)sa-east-1$0.944$0.9432Same

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

c5.4xlargec5ad.4xlargem5a.4xlarger5a.4xlarge
c6a.4xlargeCompute optimized, c6a family
c6a.4xlarge prices and specsEvery size in the c6a family

Compare c6a.4xlarge with

c6g.4xlargec6i.4xlargem6a.4xlarger6a.4xlargec7a.4xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 56–57% 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.