c6a.4xlargevsr6a.4xlarge

c6a.4xlarge is 33% cheaper than r6a.4xlarge on demand in US East (N. Virginia), saving $215.50 a month.

At a glancec6a.4xlarger6a.4xlarge
On-demand$0.612/hr33% less$0.9072/hr
Lowest rate$0.2362/hrSpot, can be interrupted$0.2337/hr1% lessSpot, can be interrupted
Size16 vCPUs, 32 GiB16 vCPUs, 128 GiB
ProcessorAMD EPYC 7R13 ProcessorAMD 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.

Optionc6a.4xlarger6a.4xlarger6a.4xlarge vs c6a.4xlarge
On-demandPay by the hour$0.612$0.9072▲ 48%
SpotCan be interrupted61% off$0.236274% off$0.2337▼ 1%
1-yr reservedNo upfront34% off$0.404834% off$0.6001▲ 48%
3-yr reservedNo upfront56% off$0.269455% off$0.4115▲ 53%
1-yr savings planHourly commitment28% off$0.442328% off$0.6573▲ 49%
3-yr savings planHourly commitment52% off$0.295548% off$0.4732▲ 60%

Key differences

The biggest lead each one has.

Where c6a.4xlarge leads
On-demand price$0.612 vs $0.9072 per hour
33% cheaper
Where r6a.4xlarge leads
Memory (GiB)128 vs 32
4× higher

Specs

3 of 40 specs differ. Those are in bold.

ComputeAll 10 matchc6a.4xlarger6a.4xlarge
vCPUs1616
Physical cores88
Threads per core22
Architecturex86_64x86_64
ProcessorAMD EPYC 7R13 ProcessorAMD EPYC 7R13 Processor
CPU makerAMDAMD
Clock speed3.6 GHz3.6 GHz
Sustained clock3.6 GHz3.6 GHz
Processor featuresAMD Turbo; AVX; AVX2AMD Turbo; AVX; AVX2
BurstableNoNo
Memory1 of 1 differc6a.4xlarger6a.4xlarge
Memory (GiB)32128
NetworkingAll 8 matchc6a.4xlarger6a.4xlarge
NetworkUp to 12500 MegabitUp to 12500 Megabit
Network baseline6.25 Gbps6.25 Gbps
Network peak12.5 Gbps12.5 Gbps
Enhanced networkingYes (ENA)Yes (ENA)
EFANoNo
IPv6YesYes
Max network interfaces88
IPv4 addresses per interface3030
StorageAll 11 matchc6a.4xlarger6a.4xlarge
StorageEBS onlyEBS only
EBS optimizedYesYes
EBS over NVMeRequiredRequired
EBS throughputUp to 6667 MbpsUp to 6667 Mbps
EBS baseline bandwidth5,000 Mbps5,000 Mbps
EBS max bandwidth10,000 Mbps10,000 Mbps
EBS baseline throughput625 MB/s625 MB/s
EBS max throughput1,250 MB/s1,250 MB/s
EBS baseline IOPS20,00020,000
EBS max IOPS40,00040,000
Max EBS volumes2727
Instance details2 of 10 differc6a.4xlarger6a.4xlarge
Familyc6ar6a
CategoryCompute optimizedMemory optimized
Current generationYesYes
Normalization factor3232
Bare metalNoNo
HypervisorNitroNitro
Placement groupsCluster, Partition, SpreadCluster, Partition, Spread
HibernationYesYes
Nitro EnclavesYesYes
Boot modesLegacy BIOS, UEFILegacy BIOS, UEFI

On-demand prices by region

Cheapest for c6a.4xlarge first. Linux, USD per hour.

Regionc6a.4xlarger6a.4xlargeDifference
Asia Pacific (Hyderabad)ap-south-2$0.374$0.572▲ 53%
Asia Pacific (Mumbai)ap-south-1$0.374$0.572▲ 53%
US East (N. Virginia)Used in summaryus-east-1$0.612$0.9072▲ 48%
US East (Ohio)us-east-2$0.612$0.9072▲ 48%
US West (Oregon)us-west-2$0.612$0.9072▲ 48%
EU (Ireland)eu-west-1$0.6566$1.015▲ 55%
Canada (Central)ca-central-1$0.6696$0.9936▲ 48%
EU (Frankfurt)eu-central-1$0.6984$1.094▲ 57%
Asia Pacific (Singapore)ap-southeast-1$0.7056$1.094▲ 55%
EU (London)eu-west-2$0.7272$1.066▲ 47%
US West (N. California)us-west-1$0.7632$1.008▲ 32%
Asia Pacific (Tokyo)ap-northeast-1$0.7704$1.094▲ 42%
Asia Pacific (Sydney)ap-southeast-2$0.7992$1.087▲ 36%

Keep exploring

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

c6a.4xlargeCompute optimized, c6a family
c6a.4xlarge prices and specsEvery size in the c6a family

Compare c6a.4xlarge with

c6g.4xlargec6i.4xlargem6a.4xlargec5a.4xlargec7a.4xlarge
r6a.4xlargeMemory optimized, r6a family
r6a.4xlarge prices and specsEvery size in the r6a family

Compare r6a.4xlarge with

r6g.4xlarger6i.4xlargem6a.4xlarger5a.4xlarger7a.4xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 55–56% 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.