A data center GPU against a consumer card on the Ampere architecture: 48 GB GDDR6 against 24 GB GDDR6X and 45% more memory bandwidth on the RTX 3090 Ti.
At a glance
Memory
- A40
- 48 GB
- RTX 3090 Ti
- 24 GB
2x more on A40
Memory bandwidth
- A40
- 696 GB/s
- RTX 3090 Ti
- 1,008 GB/s
1.4x higher on RTX 3090 Ti
Cheapest on-demand
- A40
- $1.05 /GPU/hr
- RTX 3090 Ti
- $0.19 /GPU/hr
5.5x more expensive on A40
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | A40 | RTX 3090 Ti | Difference |
|---|---|---|---|
| On-demand | -- /GPU/hr from $1.05 | -- /GPU/hr from $0.19 | |
| Reserved | -- /GPU/hr from $0.61 (24 mo) | No reserved listings | |
| Spot | No spot listings | -- /GPU/hr from $0.10 |
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 on-demand and reserved on the A40 and on-demand and spot on the RTX 3090 Ti: 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 3090 Ti price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | A40 | RTX 3090 Ti | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 48 GB GDDR6 | 24 GB GDDR6X | 2x more on A40 |
| Bandwidth | 696 GB/s | 1,008 GB/s | 1.4x higher on RTX 3090 Ti |
| Bus width | 384-bit | 384-bit | Identical |
| Compute · dense | |||
| FP16 / BF16 | 149.7 TFLOPS | 80 TFLOPS | 1.9x higher on A40 |
| INT8 | 299.3 TOPS | 320 TOPS | 1.1x higher on RTX 3090 Ti |
| FP32 | 37.4 TFLOPS | 40 TFLOPS | 1.1x higher on RTX 3090 Ti |
| Platform | |||
| Interconnect | PCIe only | PCIe only | |
| Board power | 300 W | 450 W | 1.5x higher on RTX 3090 Ti |
| Released | Q4 2020 | Q1 2022 | 2 years newer on RTX 3090 Ti |
| Precision | |||
| Supported formats | FP16BF16TF32FP32INT4INT8 | FP16BF16TF32FP32INT4INT8 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: A40 datasheet and RTX 3090 Ti 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 3090 Ti /GPU/hr |
|---|---|---|
Runpod
|
Reservation on request | On-Demand $0.27 |
Exoscale
|
On-Demand $1.05 | -- |
Database Mart
|
Reserved (24mo) $0.61 | -- |
Utho
|
Reserved (36mo) $0.65 | -- |
Sesterce
|
On-Demand $1.21 | -- |
EmpirioLabs AI
|
On-Demand $1.49 | -- |
Salad
|
-- | On-Demand $0.19 |
Similar GPUs
Other comparisons in the same class.
Our data for Nvidia A40 was last updated on Sept. 7, 2026, and for Nvidia RTX 3090 Ti on Sept. 7, 2026.