c4a-highmem-16vsc4d-highmem-16

c4a-highmem-16 is 2% cheaper than c4d-highmem-16 on demand in Iowa, saving $15.11 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 glancec4a-highmem-16c4d-highmem-16
On-demand$0.943/hr2% less$0.9637/hr
Lowest rate$0.4245/hr2% less3-yr committed use, no upfront$0.4337/hr3-yr committed use, no upfront
Size16 vCPUs, 128 GiB16 vCPUs, 126 GiB
ProcessorGoogle AxionAMD EPYC Turin
Architecturearm64x86_64

Prices in Iowa

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

Optionc4a-highmem-16c4d-highmem-16c4d-highmem-16 vs c4a-highmem-16
On-demandPay by the hour$0.943$0.9637▲ 2%
SpotCan be interrupted51% off$0.465156% off$0.427▼ 8%
1-yr committed useNo upfront34% off$0.621637% off$0.6071▼ 2%
3-yr committed useNo upfront55% off$0.424555% off$0.4337▲ 2%

Key differences

The biggest lead each one has.

Where c4a-highmem-16 leads
On-demand price$0.943 vs $0.9637 per hour
2% cheaper
Memory (GiB)128 vs 126
2% higher
Where c4d-highmem-16 leads

No clear lead on the measures we compare.

Specs

6 of 11 specs differ. Those are in bold.

Compute2 of 3 differc4a-highmem-16c4d-highmem-16
vCPUs1616
Architecturearm64x86_64
ProcessorGoogle AxionAMD EPYC Turin
Memory1 of 1 differc4a-highmem-16c4d-highmem-16
Memory (GiB)128126
Networking1 of 1 differc4a-highmem-16c4d-highmem-16
NetworkUp to 23 GbpsUp to 20 Gbps
StorageAll 2 matchc4a-highmem-16c4d-highmem-16
StorageNetwork disks onlyNetwork disks only
Max persistent disks3232
Instance details1 of 2 differc4a-highmem-16c4d-highmem-16
Familyc4ac4d
CategoryGeneral purposeGeneral purpose
Other1 of 2 differc4a-highmem-16c4d-highmem-16
SeriesC4AC4D
Specs sourceCompute Engine APICompute Engine API

On-demand prices by region

Cheapest for c4a-highmem-16 first. Linux, USD per hour.

Regionc4a-highmem-16c4d-highmem-16Difference
Columbusus-east5$0.943$0.9637▲ 2%
IowaUsed in summaryus-central1$0.943$0.9637▲ 2%
Northern Virginiaus-east4$0.943$0.9637▲ 2%
Oregonus-west1$0.943$0.9637▲ 2%
South Carolinaus-east1$0.943$0.9637▲ 2%
Mumbaiasia-south1$0.9807$1.002▲ 2%
Netherlandseurope-west4$0.9902$1.012▲ 2%
Belgiumeurope-west1$1.038$1.061▲ 2%
Finlandeurope-north1$1.038$1.061▲ 2%
Johannesburgafrica-south1$1.038$1.061▲ 2%
Montréalnorthamerica-northeast1$1.038$1.061▲ 2%
Torontonorthamerica-northeast2$1.038$1.061▲ 2%
Las Vegasus-west4$1.062$1.085▲ 2%
Londoneurope-west2$1.075$1.099▲ 2%
Taiwanasia-east1$1.092$1.116▲ 2%
Frankfurteurope-west3$1.113$1.137▲ 2%
Madrideurope-southwest1$1.113$1.137▲ 2%
Singaporeasia-southeast1$1.163$1.189▲ 2%
Sydneyaustralia-southeast1$1.179$1.205▲ 2%
Tokyoasia-northeast1$1.211$1.238▲ 2%
Melbourneaustralia-southeast2$1.226$1.253▲ 2%

Keep exploring

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

c4a-highmem-16General purpose, c4a family
c4a-highmem-16 prices and specsEvery size in the c4a family

Compare c4a-highmem-16 with

c4-highmem-16
c4d-highmem-16General purpose, c4d family
c4d-highmem-16 prices and specsEvery size in the c4d family

Compare c4d-highmem-16 with

c4-highmem-16c3d-highmem-16

Pay the committed rate, with commitment protection

The best committed rate on these two is 55% below on-demand. Connect your cloud accounts to unlock greater savings with commitment protection.

Connect Google Cloud account

GCP Compute Engine Linux prices in USD. Monthly figures use 730 hours. Prices last updated 12 Nov 2026.