A data center GPU against a workstation card, one Ampere and one Turing: 48 GB GDDR6 against 8 GB GDDR6 and 67% more memory bandwidth on the A40.
At a glance
Memory
- A40
- 48 GB
- RTX 4000
- 8 GB
6x more on A40
Memory bandwidth
- A40
- 696 GB/s
- RTX 4000
- 416 GB/s
1.7x higher on A40
Cheapest on-demand
- A40
- $0.49 /GPU/hr
- RTX 4000
- $0.56 /GPU/hr
13% cheaper on A40
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | A40 | RTX 4000 | Difference |
|---|---|---|---|
| On-demand | $1.05 /GPU/hr from $0.49 | -- /GPU/hr from $0.56 | |
| Reserved | -- /GPU/hr from $0.61 (24 mo) | No reserved listings |
Heads up: A provider's own page may quote a different figure, for example on tax, region or a promotion. A monthly-only plan shows a derived hourly rate. Medians are across providers, one vote each, so a large catalog does not outweigh a small one. No median for reserved on the A40 and on-demand on the RTX 4000: we only show one when at least 3 providers list the GPU on that billing type. Verify before provisioning. More on how we price.
Price history
A40 vs RTX 4000 price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | A40 | RTX 4000 | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 48 GB GDDR6 | 8 GB GDDR6 | 6x more on A40 |
| Bandwidth | 696 GB/s | 416 GB/s | 1.7x higher on A40 |
| Bus width | 384-bit | 256-bit | 1.5x wider on A40 |
| Compute · dense | |||
| FP16 / BF16 | 149.7 TFLOPS | 57 TFLOPS | 2.6x higher on A40 |
| INT8 | 299.3 TOPS | ||
| FP32 | 37.4 TFLOPS | 7.1 TFLOPS | 5.3x higher on A40 |
| Platform | |||
| Interconnect | PCIe only | PCIe only | |
| Board power | 300 W | 160 W | 1.9x higher on A40 |
| Released | Q4 2020 | Q4 2018 | 2 years newer on A40 |
| Precision | |||
| Supported formats | FP16BF16TF32FP32INT4INT8 | FP16FP32INT4INT8 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: A40 datasheet and RTX 4000 datasheet.
Where to rent them
Providers listing these GPUs, those with both first, so you can switch without moving clouds.
| Provider | A40 /GPU/hr | RTX 4000 /GPU/hr |
|---|---|---|
GPU.ai
|
On-Demand $0.49 | -- |
Runpod
|
On-Demand $0.49 | -- |
Sesterce
|
On-Demand $2.05 | -- |
Runcrate
|
On-Demand $2.05 | -- |
Exoscale
|
On-Demand $1.05 | -- |
Database Mart
|
Reserved (24mo) $0.61 | -- |
Utho
|
Reserved (36mo) $0.65 | -- |
EmpirioLabs AI
|
On-Demand $1.49 | -- |
Paperspace
|
-- | On-Demand $0.56 |
Similar GPUs
Other comparisons in the same class.
-
Nvidia RTX 6000 Ada
From $0.55 /GPU/hr Compare -
Nvidia A5000
From $0.23 /GPU/hr Compare -
Nvidia L40
From $0.45 /GPU/hr Compare -
Nvidia RTX 4000 Ada
From $0.18 /GPU/hr Compare -
Nvidia A4000
From $0.07 /GPU/hr Compare
Our data for Nvidia A40 was last updated on Sept. 7, 2026, and for Nvidia RTX 4000 on Sept. 7, 2026.