c4-highmem-32-lssdvsc4a-highmem-32-lssd
c4a-highmem-32-lssd is 11% cheaper than c4-highmem-32-lssd on demand in Iowa, saving $902.64 a month. They use different processor architectures (x86_64 and arm64), so software built for one may need rebuilding to run on the other.
| At a glance | c4-highmem-32-lssd | c4a-highmem-32-lssd |
|---|---|---|
| On-demand | $11.20/hr | $9.963/hr11% less |
| Lowest rate | $5.376/hr3-yr committed use, no upfront | $4.782/hr11% less3-yr committed use, no upfront |
| Size | 32 vCPUs, 256 GiB | 32 vCPUs, 256 GiB |
| Architecture | x86_64 | arm64 |
Prices in Iowa
“Off” is the discount against each type’s own on-demand price. PostgreSQL, USD per hour.
| Option | c4-highmem-32-lssd | c4a-highmem-32-lssd | c4a-highmem-32-lssd vs c4-highmem-32-lssd |
|---|---|---|---|
| On-demandPay by the hour | $11.20 | $9.963 | ▼ 11% |
| 1-yr committed useNo upfront | 25% off$8.40 | 25% off$7.473 | ▼ 11% |
| 3-yr committed useNo upfront | 52% off$5.376 | 52% off$4.782 | ▼ 11% |
Key differences
The biggest lead each one has.
Where c4-highmem-32-lssd leads
No clear lead on the measures we compare.
Where c4a-highmem-32-lssd leads
On-demand price$9.963 vs $11.20 per hour
11% cheaperSpecs
4 of 8 specs differ. Those are in bold.
| Compute1 of 2 differ | c4-highmem-32-lssd | c4a-highmem-32-lssd |
|---|---|---|
| vCPUs | 32 | 32 |
| Architecture | x86_64 | arm64 |
| MemoryAll 1 match | c4-highmem-32-lssd | c4a-highmem-32-lssd |
|---|---|---|
| Memory (GiB) | 256 | 256 |
| StorageAll 1 match | c4-highmem-32-lssd | c4a-highmem-32-lssd |
|---|---|---|
| Storage | Cluster storage + local SSD cache | Cluster storage + local SSD cache |
| Instance details2 of 2 differ | c4-highmem-32-lssd | c4a-highmem-32-lssd |
|---|---|---|
| Family | c4 | c4a |
| Category | C4 | C4A |
| Other1 of 2 differ | c4-highmem-32-lssd | c4a-highmem-32-lssd |
|---|---|---|
| Series | C4 | C4A |
| Specs source | AlloyDB machine type docs | AlloyDB machine type docs |
On-demand prices by region
Cheapest for c4-highmem-32-lssd first. PostgreSQL, USD per hour.
| Region | c4-highmem-32-lssd | c4a-highmem-32-lssd | Difference |
|---|---|---|---|
| Columbusus-east5 | $11.20 | $9.963 | ▼ 11% |
| IowaUsed in summaryus-central1 | $11.20 | $9.963 | ▼ 11% |
| Northern Virginiaus-east4 | $11.20 | $9.963 | ▼ 11% |
| Oregonus-west1 | $11.20 | $9.963 | ▼ 11% |
| Mumbaiasia-south1 | $11.648 | $10.363 | ▼ 11% |
| Bangkokasia-southeast3 | $11.76 | $10.462 | ▼ 11% |
| Netherlandseurope-west4 | $11.76 | $10.461 | ▼ 11% |
| Stockholmeurope-north2 | $11.76 | $10.461 | ▼ 11% |
| Mexiconorthamerica-south1 | $12.208 | $10.861 | ▼ 11% |
| Belgiumeurope-west1 | $12.32 | $10.96 | ▼ 11% |
| Finlandeurope-north1 | $12.32 | $10.96 | ▼ 11% |
| Johannesburgafrica-south1 | $12.32 | $10.96 | ▼ 11% |
| Montréalnorthamerica-northeast1 | $12.32 | $10.96 | ▼ 11% |
| Tel Avivme-west1 | $12.32 | $10.96 | ▼ 11% |
| Torontonorthamerica-northeast2 | $12.32 | $10.96 | ▼ 11% |
| Las Vegasus-west4 | $12.656 | $11.261 | ▼ 11% |
| South Carolinaus-east1 | $12.656 | $11.261 | ▼ 11% |
| Londoneurope-west2 | $12.768 | $11.359 | ▼ 11% |
| Milaneurope-west8 | $12.992 | $11.556 | ▼ 11% |
| Pariseurope-west9 | $12.992 | $11.556 | ▼ 11% |
| Taiwanasia-east1 | $12.992 | $11.556 | ▼ 11% |
| Dallasus-south1 | $13.216 | $11.759 | ▼ 11% |
| Frankfurteurope-west3 | $13.216 | $11.759 | ▼ 11% |
| Madrideurope-southwest1 | $13.216 | $11.759 | ▼ 11% |
| Turineurope-west12 | $13.216 | $11.759 | ▼ 11% |
| Delhiasia-south2 | $13.44 | $11.957 | ▼ 11% |
| Los Angelesus-west2 | $13.44 | $11.957 | ▼ 11% |
| Salt Lake Cityus-west3 | $13.44 | $11.957 | ▼ 11% |
| Dohame-central1 | $13.664 | $12.107 | ▼ 11% |
| Singaporeasia-southeast1 | $13.776 | $12.257 | ▼ 11% |
| Sydneyaustralia-southeast1 | $14.00 | $12.454 | ▼ 11% |
| Osakaasia-northeast2 | $14.336 | $12.755 | ▼ 11% |
| Seoulasia-northeast3 | $14.336 | $12.755 | ▼ 11% |
| Tokyoasia-northeast1 | $14.336 | $12.755 | ▼ 11% |
| Warsaweurope-central2 | $14.448 | $12.854 | ▼ 11% |
| Melbourneaustralia-southeast2 | $14.56 | $12.952 | ▼ 11% |
| Jakartaasia-southeast2 | $15.008 | $13.352 | ▼ 11% |
| Hong Kongasia-east2 | $15.68 | $13.949 | ▼ 11% |
| Zuricheurope-west6 | $15.68 | $13.949 | ▼ 11% |
| Santiagosouthamerica-west1 | $16.016 | $14.25 | ▼ 11% |
| Berlineurope-west10 | $17.248 | $15.347 | ▼ 11% |
| São Paulosouthamerica-east1 | $17.808 | $15.845 | ▼ 11% |
| Dammamme-central2 | $17.92 | $15.94 | ▼ 11% |
Keep exploring
Each type’s own page, and how it compares with others.
GCP AlloyDB PostgreSQL prices in USD. Monthly figures use 730 hours. Prices last updated 12 Nov 2026.