c8g.16xlargevsc8i.16xlarge

c8g.16xlarge is 15% cheaper than c8i.16xlarge on demand in US East (N. Virginia), saving $325.87 a month. They use different processor architectures (arm64 and x86_64), so software built for one may need rebuilding to run on the other.

At a glancec8g.16xlargec8i.16xlarge
On-demand$2.552/hr15% less$2.999/hr
Lowest rate$0.7128/hr14% lessSpot, can be interrupted$0.832/hrSpot, can be interrupted
Size64 vCPUs, 128 GiB64 vCPUs, 128 GiB
ProcessorAWS Graviton4 ProcessorIntel Xeon Scalable (Granite Rapids)
Architecturearm64x86_64

Prices in US East (N. Virginia)

“Off” is the discount against each type’s own on-demand price. Linux, USD per hour.

Optionc8g.16xlargec8i.16xlargec8i.16xlarge vs c8g.16xlarge
On-demandPay by the hour$2.552$2.999▲ 17%
SpotCan be interrupted72% off$0.712872% off$0.832▲ 17%
1-yr reservedNo upfront34% off$1.682——
3-yr reservedNo upfront56% off$1.122——
1-yr savings planHourly commitment28% off$1.8328% off$2.167▲ 18%
3-yr savings planHourly commitment52% off$1.23652% off$1.448▲ 17%

Key differences

The biggest lead each one has.

Where c8g.16xlarge leads
On-demand price$2.552 vs $2.999 per hour
15% cheaper
Physical cores64 vs 32
2× higher
Where c8i.16xlarge leads
Clock speed3.9 GHz vs 2.7 GHz
44% higher
IPv4 addresses per interface64 vs 50
28% higher

Specs

13 of 40 specs differ. Those are in bold.

Compute8 of 10 differc8g.16xlargec8i.16xlarge
vCPUs6464
Physical cores6432
Threads per core12
Architecturearm64x86_64
ProcessorAWS Graviton4 ProcessorIntel Xeon Scalable (Granite Rapids)
CPU makerAWSIntel
Clock speed2.7 GHz3.9 GHz
Sustained clock2.8 GHz3.9 GHz
Processor features–Intel AVX; Intel AVX2; Intel AVX512; Intel Turbo; Intel AMX
BurstableNoNo
MemoryAll 1 matchc8g.16xlargec8i.16xlarge
Memory (GiB)128128
Networking3 of 8 differc8g.16xlargec8i.16xlarge
Network30 Gigabit30000 Megabit
Network baseline30 Gbps30 Gbps
Network peak30 Gbps30 Gbps
Enhanced networkingYes (ENA)Yes (ENA)
EFANoNo
IPv6YesYes
Max network interfaces1516
IPv4 addresses per interface5064
StorageAll 11 matchc8g.16xlargec8i.16xlarge
StorageEBS onlyEBS only
EBS optimizedYesYes
EBS over NVMeRequiredRequired
EBS throughput20000 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 volumes4848
Instance details2 of 10 differc8g.16xlargec8i.16xlarge
Familyc8gc8i
CategoryCompute optimizedCompute optimized
Current generationYesYes
Normalization factor128128
Bare metalNoNo
HypervisorNitroNitro
Placement groupsCluster, Partition, SpreadCluster, Partition, Spread
HibernationYesYes
Nitro EnclavesYesYes
Boot modesUEFILegacy BIOS, UEFI

On-demand prices by region

Cheapest for c8g.16xlarge first. Linux, USD per hour.

Regionc8g.16xlargec8i.16xlargeDifference
Asia Pacific (Hyderabad)ap-south-2$1.727$2.999▲ 74%
Asia Pacific (Mumbai)ap-south-1$1.727$2.999▲ 74%
Asia Pacific (Malaysia)ap-southeast-5$2.492$2.939▲ 18%
US East (Ohio)us-east-2$2.543$2.999▲ 18%
US East (N. Virginia)Used in summaryus-east-1$2.552$2.999▲ 17%
US West (Oregon)us-west-2$2.552$2.999▲ 17%
EU (Stockholm)eu-north-1$2.723$3.211▲ 18%
Europe (Spain)eu-south-2$2.728$3.217▲ 18%
EU (Ireland)eu-west-1$2.729$3.218▲ 18%
Canada (Central)ca-central-1$2.783$3.281▲ 18%
Asia Pacific (Seoul)ap-northeast-2$2.872$3.387▲ 18%
EU (Frankfurt)eu-central-1$2.902$3.422▲ 18%
Asia Pacific (Singapore)ap-southeast-1$2.933$3.458▲ 18%
EU (London)eu-west-2$3.022$3.563▲ 18%
EU (Paris)eu-west-3$3.022$3.563▲ 18%
US West (N. California)us-west-1$3.172$3.74▲ 18%
Asia Pacific (Tokyo)ap-northeast-1$3.202$3.775▲ 18%
Asia Pacific (Sydney)ap-southeast-2$3.322$3.916▲ 18%
Africa (Cape Town)af-south-1$3.411$4.022▲ 18%
Asia Pacific (New Zealand)ap-southeast-6$3.487$4.112▲ 18%
South America (Sao Paulo)sa-east-1$3.91$4.622▲ 18%

Keep exploring

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

c8g.16xlargeCompute optimized, c8g family
c8g.16xlarge prices and specsEvery size in the c8g family

Compare c8g.16xlarge with

c8gb.16xlargec8gn.16xlargem8g.16xlarger8g.16xlargec8a.16xlargec8gd.16xlargec7g.16xlargec9g.16xlarge
c8i.16xlargeCompute optimized, c8i family
c8i.16xlarge prices and specsEvery size in the c8i family

Compare c8i.16xlarge with

c8i-flex.16xlargem8i.16xlarger8i.16xlargec8a.16xlargec8id.16xlargec8in.16xlargec8ib.16xlargec7i.16xlarge

Pay the committed rate, with commitment protection

The best committed rate on these two is 52–56% 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.