A data center GPU against a consumer card on the Ada Lovelace architecture: 48 GB GDDR6 against 24 GB GDDR6X and 17% more memory bandwidth on the RTX 4090.
At a glance
Memory
- L40S
- 48 GB
- RTX 4090
- 24 GB
2x more on L40S
Memory bandwidth
- L40S
- 864 GB/s
- RTX 4090
- 1,010 GB/s
1.2x higher on RTX 4090
Cheapest on-demand
- L40S
- $0.55 /GPU/hr
- RTX 4090
- $0.23 /GPU/hr
2.4x more expensive on L40S
Price comparison
Median price per GPU per hour by billing type, with the cheapest listing under it.
| Billing | L40S | RTX 4090 | Difference |
|---|---|---|---|
| On-demand | $1.50 /GPU/hr from $0.55 | $0.44 /GPU/hr from $0.23 | 3.4x more expensive on L40S |
| Reserved | $1.19 /GPU/hr from $0.60 (12 mo) | $0.46 /GPU/hr from $0.27 (12 mo) | 2.6x more expensive on L40S |
| Spot | $0.90 /GPU/hr from $0.40 | $0.17 /GPU/hr from $0.12 | 5.3x more expensive on L40S |
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
L40S vs RTX 4090 price history
Weekly median on-demand price per GPU per hour
Specs comparison
| Spec | L40S | RTX 4090 | Difference |
|---|---|---|---|
| Memory | |||
| Capacity | 48 GB GDDR6 | 24 GB GDDR6X | 2x more on L40S |
| Bandwidth | 864 GB/s | 1,010 GB/s | 1.2x higher on RTX 4090 |
| Bus width | 384-bit | 384-bit | Identical |
| Compute · dense | |||
| FP8 | 733 TFLOPS | 330.3 TFLOPS | 2.2x higher on L40S |
| FP16 / BF16 | 362.1 TFLOPS | 165.2 TFLOPS | 2.2x higher on L40S |
| INT8 | 733 TOPS | 660.6 TOPS | 1.1x higher on L40S |
| FP32 | 91.6 TFLOPS | 82.6 TFLOPS | 1.1x higher on L40S |
| Platform | |||
| Interconnect | PCIe only | PCIe only | |
| Board power | 350 W | 450 W | 1.3x higher on RTX 4090 |
| Released | Q3 2023 | Q4 2022 | 10 months newer on L40S |
| Precision | |||
| Supported formats | FP8FP16BF16TF32FP32INT4INT8 | FP8FP16BF16TF32FP32INT4INT8 | |
Compute: Vendor peak figures, dense and per GPU. Not measured throughput.
Source: L40S 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 | L40S /GPU/hr | RTX 4090 /GPU/hr |
|---|---|---|
Novita
|
On-Demand $0.55 | On-Demand $0.33 |
Vast.ai
|
On-Demand $0.74 | On-Demand $0.32 |
GPU.ai
|
On-Demand $0.79 | On-Demand $0.33 |
Runpod
|
On-Demand $0.79 | On-Demand $0.34 |
Packet·ai
|
On-Demand $0.92 | On-Demand $0.39 |
Sesterce
|
On-Demand $0.97 | -- |
Massed Compute
|
On-Demand $0.97 | -- |
Runcrate
|
On-Demand $0.97 | -- |
Theta EdgeCloud
|
-- | On-Demand $0.23 |
Lium
|
-- | On-Demand $0.30 |
Salad
|
-- | On-Demand $0.33 |
35 providers list the L40S and 20 the RTX 4090. Every listing is on the L40S page and the RTX 4090 page.
Similar GPUs
Other comparisons in the same class.
-
Nvidia H100
80 GB HBM3 · 3.9x the bandwidth of the L40S
From $1.30 /GPU/hr Compare -
Nvidia A100
80 GB HBM2e · 2.2x the bandwidth of the L40S
From $0.43 /GPU/hr Compare
-
Nvidia L40
48 GB GDDR6 · released Q4 2022
From $0.46 /GPU/hr Compare
-
Nvidia RTX 5090
32 GB GDDR7 · 77% more bandwidth than the RTX 4090
From $0.35 /GPU/hr Compare
-
Nvidia RTX 3090
24 GB GDDR6X · NVLink 112 GB/s
From $0.10 /GPU/hr Compare
Our data for Nvidia L40S was last updated on Sept. 14, 2026, and for Nvidia RTX 4090 on Sept. 14, 2026.