c6a.16xlargevsc6i.16xlarge

c6a.16xlarge is 10% cheaper than c6i.16xlarge on demand in US East (N. Virginia), saving $198.56 a month.

At a glancec6a.16xlargec6i.16xlarge
On-demand$2.448/hr10% less$2.72/hr
Lowest rate$0.7818/hrSpot, can be interrupted$0.7046/hr10% lessSpot, can be interrupted
Size64 vCPUs, 128 GiB64 vCPUs, 128 GiB
ProcessorAMD EPYC 7R13 ProcessorIntel Xeon 8375C (Ice Lake)
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.16xlargec6i.16xlargec6i.16xlarge vs c6a.16xlarge
On-demandPay by the hour$2.448$2.72▲ 11%
SpotCan be interrupted68% off$0.781874% off$0.7046▼ 10%
1-yr reservedNo upfront34% off$1.61934% off$1.799▲ 11%
3-yr reservedNo upfront56% off$1.07856% off$1.198▲ 11%
1-yr savings planHourly commitment28% off$1.76928% off$1.966▲ 11%
3-yr savings planHourly commitment52% off$1.18252% off$1.313▲ 11%

Key differences

The biggest lead each one has.

Where c6a.16xlarge leads
On-demand price$2.448 vs $2.72 per hour
10% cheaper
Clock speed3.6 GHz vs 3.5 GHz
3% higher
Where c6i.16xlarge leads

No clear lead on the measures we compare.

Specs

7 of 40 specs differ. Those are in bold.

Compute5 of 10 differc6a.16xlargec6i.16xlarge
vCPUs6464
Physical cores3232
Threads per core22
Architecturex86_64x86_64
ProcessorAMD EPYC 7R13 ProcessorIntel Xeon 8375C (Ice Lake)
CPU makerAMDIntel
Clock speed3.6 GHz3.5 GHz
Sustained clock3.6 GHz3.5 GHz
Processor featuresAMD Turbo; AVX; AVX2Intel AVX; Intel AVX2; Intel AVX512; Intel Turbo
BurstableNoNo
MemoryAll 1 matchc6a.16xlargec6i.16xlarge
Memory (GiB)128128
NetworkingAll 8 matchc6a.16xlargec6i.16xlarge
Network25000 Megabit25000 Megabit
Network baseline25 Gbps25 Gbps
Network peak25 Gbps25 Gbps
Enhanced networkingYes (ENA)Yes (ENA)
EFANoNo
IPv6YesYes
Max network interfaces1515
IPv4 addresses per interface5050
Storage1 of 11 differc6a.16xlargec6i.16xlarge
StorageEBS onlyEBS only
EBS optimizedYesYes
EBS over NVMeRequiredRequired
EBS throughput13333 Mbps20000 Mbps
EBS baseline bandwidth20,000 Mbps20,000 Mbps
EBS max bandwidth20,000 Mbps20,000 Mbps
EBS baseline throughput2,500 MB/s2,500 MB/s
EBS max throughput2,500 MB/s2,500 MB/s
EBS baseline IOPS80,00080,000
EBS max IOPS80,00080,000
Max EBS volumes2727
Instance details1 of 10 differc6a.16xlargec6i.16xlarge
Familyc6ac6i
CategoryCompute optimizedCompute optimized
Current generationYesYes
Normalization factor128128
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.16xlarge first. Linux, USD per hour.

Regionc6a.16xlargec6i.16xlargeDifference
Asia Pacific (Hyderabad)ap-south-2$1.496$2.72▲ 82%
Asia Pacific (Mumbai)ap-south-1$1.496$2.72▲ 82%
US East (N. Virginia)Used in summaryus-east-1$2.448$2.72▲ 11%
US East (Ohio)us-east-2$2.448$2.72▲ 11%
US West (Oregon)us-west-2$2.448$2.72▲ 11%
EU (Ireland)eu-west-1$2.627$2.918▲ 11%
Canada (Central)ca-central-1$2.678$2.976▲ 11%
EU (Frankfurt)eu-central-1$2.794$3.104▲ 11%
Asia Pacific (Singapore)ap-southeast-1$2.822$3.136▲ 11%
EU (London)eu-west-2$2.909$3.232▲ 11%
US West (N. California)us-west-1$3.053$3.392▲ 11%
Asia Pacific (Tokyo)ap-northeast-1$3.082$3.424▲ 11%
Asia Pacific (Hong Kong)ap-east-1$3.11$3.456▲ 11%
Asia Pacific (Sydney)ap-southeast-2$3.197$3.552▲ 11%
South America (Sao Paulo)sa-east-1$3.773$4.192▲ 11%

Keep exploring

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

c6a.16xlargeCompute optimized, c6a family
c6a.16xlarge prices and specsEvery size in the c6a family

Compare c6a.16xlarge with

c6g.16xlargem6a.16xlarger6a.16xlargec5a.16xlargec7a.16xlarge
c6i.16xlargeCompute optimized, c6i family
c6i.16xlarge prices and specsEvery size in the c6i family

Compare c6i.16xlarge with

c6g.16xlargec6in.16xlargem6i.16xlarger6i.16xlargec6id.16xlargec7i.16xlarge

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.

Connect AWS account

AWS EC2 Linux prices in USD. Monthly figures use 730 hours. Prices last updated 12 Nov 2026.