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 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.
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.
Memory per GPU
2x more on L40S
L40S
RTX 4090
Memory bandwidth
1.2x higher on RTX 4090
L40S
RTX 4090
GPU interconnect
L40S
RTX 4090
Peak performance (FP16)
4.4x higher on L40S
L40S
RTX 4090
Vendor peak figures. Sparsity and tensor-core conventions differ between vendors.
Precision support
L40S
RTX 4090
Highlighted formats are supported by only one of the two.
Architecture
L40S
RTX 4090
Released
10 months newer on L40S
L40S
RTX 4090
Source: L40S datasheet and RTX 4090 datasheet.
Price comparison
Cheapest on-demand
3.3x higher on L40S
L40S
RTX 4090
Typical rate
3.6x higher on L40S
L40S
RTX 4090
Median across providers, one vote each, so a large catalog does not outweigh a small one.
Spot floor
4x higher on L40S
L40S
RTX 4090
Full price range
L40S
RTX 4090
Lowest to highest listing per GPU-hour, across on-demand, spot, reserved and custom.
Providers listing it
17 more on L40S
L40S
RTX 4090
Price, last 90 days
L40S
RTX 4090
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:
- Availability: in stock, then waitlist, then not reported, then out of stock. A price you can act on outranks a cheaper one you cannot.
- 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.
- 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.
L40S Offers
14 of 33 providers report available stock.
RTX 4090 Offers
10 of 16 providers report available stock.
Similar GPUs
Other comparisons in the same class:
Our data for Nvidia L40S was last updated on Aug. 26, 2026, and for Nvidia RTX 4090 on Aug. 26, 2026.