Two Nvidia data center GPUs, one Ampere and one Pascal: 48 GB GDDR6 against 8 GB GDDR5 and 3.6x the memory bandwidth on the A40.
At a glance
Updated 8 minutes ago- Memory
- 48 GB
- GDDR6
- Memory bandwidth
- 696 GB/s
- From
- $1.05 /GPU/hr
- 6 providers
- Memory
- 8 GB
- GDDR5
- Memory bandwidth
- 192 GB/s
- From
- $0.65 /GPU/hr
- 1 provider
Price comparison
Cheapest listed price per GPU per hour by billing type, and the median across providers.
| Billing | A40 | P4 | Difference |
|---|---|---|---|
| On-demand | $1.05 | $0.65 | 37% cheaper on P4 |
| Spot | No spot listings | $0.12 | |
| Reserved | $0.61 | $0.34 | 44% cheaper on P4 |
| Median | $1.05 | $0.81 | 22% cheaper on P4 |
Median: Median across providers, one vote each, so a large catalog does not outweigh a small one.
Price history
A40 vs P4 price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | A40 | P4 | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 48 GB GDDR6 | 8 GB GDDR5 | 6x more on A40 |
| Bandwidth | 696 GB/s | 192 GB/s | 3.6x higher on A40 |
| Bus width | 384-bit | 256-bit | 1.5x wider on A40 |
| Compute · dense | |||
| FP16 / BF16 | 149.7 TFLOPS | ||
| INT8 | 299.3 TOPS | 22 TOPS | 14x higher on A40 |
| FP32 | 37.4 TFLOPS | 5.5 TFLOPS | 6.8x higher on A40 |
| Platform | |||
| Interconnect | PCIe only | PCIe only | |
| Board power | 300 W | 75 W | 4x higher on A40 |
| Released | Q4 2020 | Q3 2016 | 4 years newer on A40 |
| Precision | |||
| Supported formats | FP16BF16TF32FP32INT4INT8 | FP16FP32INT8 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: A40 datasheet and P4 datasheet.
Where to rent them
Providers listing these GPUs, those with both first, so you can switch without moving clouds.
| Provider | A40 /GPU/hr | P4 /GPU/hr |
|---|---|---|
Exoscale
|
On-Demand $1.05 | -- |
Database Mart
|
Reserved (24mo) $0.61 | -- |
Utho
|
Reserved (36mo) $0.65 | -- |
Runpod
|
Reservation on request | -- |
Sesterce
|
On-Demand $1.21 | -- |
EmpirioLabs AI
|
On-Demand $1.49 | -- |
Google Cloud
|
-- | On-Demand $0.65 |
Similar GPUs
Other comparisons in the same class.
Our data for Nvidia A40 was last updated on Sept. 7, 2026, and for Nvidia P4 on Sept. 7, 2026.