A data center GPU against a consumer card, one Pascal and one Ada Lovelace: 24 GB GDDR5 against 24 GB GDDR6X and 2.9x the memory bandwidth on the RTX 4090.
At a glance
Memory
- P40
- 24 GB
- RTX 4090
- 24 GB
Identical
Memory bandwidth
- P40
- 346 GB/s
- RTX 4090
- 1,010 GB/s
2.9x higher on RTX 4090
Cheapest on-demand
- P40
- --
- RTX 4090
- $0.23 /GPU/hr
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | P40 | RTX 4090 | Difference |
|---|---|---|---|
| On-demand | No on-demand listings | $0.44 /GPU/hr from $0.23 | |
| Reserved | No reserved listings | $0.47 /GPU/hr from $0.27 (12 mo) | |
| Spot | No spot listings | $0.17 /GPU/hr from $0.16 |
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. Verify before provisioning. More on how we price.
Price history
P40 vs RTX 4090 price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | P40 | RTX 4090 | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 24 GB GDDR5 | 24 GB GDDR6X | Identical |
| Bandwidth | 346 GB/s | 1,010 GB/s | 2.9x higher on RTX 4090 |
| Bus width | 384-bit | 384-bit | Identical |
| Compute · dense | |||
| FP8 | Not supported | 330.3 TFLOPS | RTX 4090 only |
| FP16 / BF16 | 165.2 TFLOPS | ||
| INT8 | 47 TOPS | 660.6 TOPS | 14x higher on RTX 4090 |
| FP32 | 12 TFLOPS | 82.6 TFLOPS | 6.9x higher on RTX 4090 |
| Platform | |||
| Interconnect | PCIe only | PCIe only | |
| Board power | 250 W | 450 W | 1.8x higher on RTX 4090 |
| Released | Q3 2016 | Q4 2022 | 6 years newer on RTX 4090 |
| Precision | |||
| Supported formats | FP16FP32INT8 | FP8FP16BF16TF32FP32INT4INT8 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: P40 datasheet and RTX 4090 datasheet.
Where to rent them
Providers listing these GPUs, those with both first, so you can switch without moving clouds.
| Provider | P40 /GPU/hr | RTX 4090 /GPU/hr |
|---|---|---|
Theta EdgeCloud
|
-- | On-Demand $0.23 |
Lium
|
-- | On-Demand $0.30 |
Vast.ai
|
-- | On-Demand $0.31 |
Novita
|
-- | On-Demand $0.33 |
Salad
|
-- | On-Demand $0.33 |
GPU.ai
|
-- | On-Demand $0.34 |
Runpod
|
-- | On-Demand $0.34 |
Packet·ai
|
-- | On-Demand $0.39 |
0 providers list the P40 and 20 the RTX 4090. Every listing is on the P40 page and the RTX 4090 page.
Similar GPUs
Other comparisons in the same class.
-
Nvidia A10
From $0.20 /GPU/hr Compare -
Nvidia RTX 5090
From $0.35 /GPU/hr Compare -
Nvidia L40S
From $0.38 /GPU/hr Compare
Our data for Nvidia P40 was last updated on Sept. 7, 2026, and for Nvidia RTX 4090 on Sept. 7, 2026.