Nvidia logo

L40S vs RTX 4090

The RTX 4090 delivers 83 TFLOPS at 450W for gaming, while the L40S provides 362 TFLOPS at 350W for datacenter. Choose RTX 4090 for gaming, L40S for professional inference.

Overview

Nvidia logo Nvidia L40S

The Nvidia L40S is a data center GPU on the Ada Lovelace architecture, released Q3 2023, with 48 GB GDDR6 and 864 GB/s memory bandwidth.

High Performance Datacenter

Nvidia logo Nvidia RTX 4090

The Nvidia RTX 4090 is a consumer GPU on the Ada Lovelace architecture, released Q4 2022, with 24 GB GDDR6X and 1,010 GB/s memory bandwidth.

Mid-Range Consumer

Memory per GPU

2x more on L40S
Nvidia logo L40S
48 GB GDDR6
Nvidia logo RTX 4090
24 GB GDDR6X

Memory bandwidth

1.2x higher on RTX 4090
Nvidia logo L40S
864 GB/s
Nvidia logo RTX 4090
1,010 GB/s

GPU interconnect

Nvidia logo L40S
PCIe only
Nvidia logo RTX 4090
PCIe only

Peak performance (FP16)

4.4x higher on L40S
Nvidia logo L40S
362 TFLOPS
Nvidia logo RTX 4090
83 TFLOPS

Vendor peak figures. Sparsity and tensor-core conventions differ between vendors.

Precision support

Nvidia logo L40S
FP8 FP16 BF16 TF32 FP32 INT4 INT8
Nvidia logo RTX 4090
FP8 FP16 BF16 TF32 FP32 INT4 INT8

Highlighted formats are supported by only one of the two.

Architecture

Nvidia logo L40S
Ada Lovelace
Nvidia logo RTX 4090
Ada Lovelace

Released

10 months newer on L40S
Nvidia logo L40S
Q3 2023
Nvidia logo RTX 4090
Q4 2022

Price comparison

Cheapest on-demand

3.3x higher on L40S
Nvidia logo L40S
$0.54 / GPU / hr
Nvidia logo RTX 4090
$0.16 / GPU / hr

Typical rate

3.6x higher on L40S
Nvidia logo L40S
$1.54 / GPU / hr
Nvidia logo RTX 4090
$0.43 / GPU / hr

Median across providers, one vote each, so a large catalog does not outweigh a small one.

Spot floor

4x higher on L40S
Nvidia logo L40S
$0.34 / GPU / hr
Nvidia logo RTX 4090
$0.08 / GPU / hr

Full price range

Nvidia logo L40S
$0.34 - $7.58 / GPU / hr
Nvidia logo RTX 4090
$0.08 - $0.77 / GPU / hr

Lowest to highest listing per GPU-hour, across on-demand, spot, reserved and custom.

Providers listing it

17 more on L40S
Nvidia logo L40S
33
Nvidia logo RTX 4090
16

Price, last 90 days

Nvidia logo L40S
−2%
Nvidia logo RTX 4090
−14%

Change in the market-wide median, which moves when providers reprice and when cheaper or more expensive listings enter the market.

Heads up: Prices are estimates from published rates for common setups and vary by region and usage; verify with the provider before provisioning.

Offers and availability

How this list works

Order

Each provider appears once per GPU. We pick the one configuration that speaks for that provider, and rank on it in this order:

  1. Availability: in stock, then waitlist, then not reported, then out of stock. A price you can act on outranks a cheaper one you cannot.
  2. Billing type: on-demand first, then reserved, then spot, then quote-only. On-demand leads because it is the only rate you can hold without committing to anything.
  3. Price: the lowest per-GPU hourly rate the provider lists, converted to USD.

The configuration we pick is chosen the same way, availability before billing before price. The rest of that provider's configurations are on the GPU's own page.

Ties sort alphabetically. Reserved rates are not separated by term length, so a three-year commitment can sit above a one-month one: the label beneath each price says which you are looking at. Providers who publish no rate are listed last within their group.

Transparency and funding

  • Ads and sponsors: Paid placements sit at the top of the list and are always labeled as sponsored content. Sponsorship never influences the organic ranking itself.
  • Affiliates: Affiliate links are marked. We may earn a commission if you click them, but commissions never affect the order.
  • Prices: Shown in USD, converted at daily reference rates where a provider publishes in another currency. A month means 720 hours. How we estimate costs.

Similar GPUs

Other comparisons in the same class:

View all GPUs

Our data for Nvidia L40S was last updated on Aug. 26, 2026, and for Nvidia RTX 4090 on Aug. 26, 2026.