Specifications Compared
| Spec | L40S | RTX 4000 Ada |
|---|---|---|
| TDP | 350W | 130W |
| VRAM | 48 GB | 20 GB |
| CUDA Cores | 18,176 | 6,144 |
| FP8 (dense) | 733 TFLOPS | Not published |
| Memory Type | GDDR6 | GDDR6 |
| Architecture | Ada Lovelace | Ada Lovelace |
| FP16 (dense) | 362.05 TFLOPS | Not published |
| Form Factors | PCIe | PCIe |
| INT8 (dense) | 733 TOPS | Not published |
| Interconnect | PCIe 4.0 | PCIe 4.0 |
| Tensor Cores | 568 | 192 |
| FP32 Performance | 91.6 TFLOPS | 26.7 TFLOPS |
| FP64 Performance | 1.4 TFLOPS | Not published |
| Memory Bandwidth | 864 GB/s | 360 GB/s |
| FP8 (with sparsity) | 1,466 TFLOPS | 427.6 TFLOPS |
| FP16 (with sparsity) | 733 TFLOPS | Not published |
| INT8 (with sparsity) | 1,466 TOPS | Not published |
Performance Analysis
The L40S delivers 91.6 TFLOPS of FP32 throughput compared with 26.7 TFLOPS on the RTX 4000 Ada. This gap widens further when dense FP16 performance is considered because the L40S reaches 362.05 TFLOPS dense FP16 whereas the RTX 4000 Ada figure remains unpublished. Memory bandwidth of 864 GB per second on the L40S versus 360 GB per second on the RTX 4000 Ada directly influences sustainable batch sizes during both training and inference passes. The L40S also lists 733 TFLOPS dense FP8 and 1466 TFLOPS FP8 with sparsity while the RTX 4000 Ada lists 427.6 TFLOPS FP8 with sparsity only.
Current On-Demand Offers
Cheapest secure on-demand offer per provider that is reported in stock right now, per GPU per hour; multi-GPU instances show the whole-instance price alongside. Deploy opens the DeployGPU console for providers on the platform, otherwise the provider's own site. Stock is rechecked every minute.
L40S
| Provider | Region | GPUs | Per GPU / hr | Instance / hr | Deploy |
|---|---|---|---|---|---|
| Massed Compute | us-central-2 | 4 | $0.97 | $3.88 | Deploy |
| QuantaCloud | us-midwest-1 | 8 | $1.09 | $8.72 | Deploy |
| Ori | lille-4 | 1 | $1.55 | — | Deploy |
| Lyceum | Europe | 1 | $1.99 | — | Deploy |
4 providers in stock, 17 offers (cheapest per provider shown). All L40S offers, price history and alerts
RTX 4000 Ada
| Provider | Region | GPUs | Per GPU / hr | Instance / hr | Deploy |
|---|---|---|---|---|---|
| DigitalOcean | Toronto 1 | 1 | $0.76 | — | Deploy |
1 provider in stock, 1 offer. All RTX 4000 Ada offers, price history and alerts
Notify me when L40S drops below a price
One email when the cheapest in-stock on-demand price per GPU-hour falls below your threshold. Cheapest right now: $0.97/GPU-hr.
QuantaCloud
Comparing providers? We broker across all of them.
Stop tab-switching between pricing pages. Tell us what you need, 16+ GPUs reserved or cluster capacity, and we return one quote at partner rates within 24 hours.
When to Choose the L40S
The L40S suits workloads that require 48 GB of GDDR6 memory and 864 GB per second bandwidth such as large model training or high resolution scientific simulations. Its 350 watt TDP supports sustained dense FP16 throughput of 362.05 TFLOPS without immediate thermal throttling in multi hour runs.
When to Choose the RTX 4000 Ada
The RTX 4000 Ada suits compact inference tasks or fine tuning sessions that fit within 20 GB of GDDR6 memory and operate under a 130 watt TDP envelope. Its lower power draw allows denser node packing in environments where total system energy remains constrained.
Use Cases
The L40S supplies 48 GB GDDR6 memory and 362.05 TFLOPS dense FP16 that accommodate larger models and longer sequences than the RTX 4000 Ada can handle.
The L40S provides 733 TFLOPS dense FP8 and 864 GB per second bandwidth that sustain higher token throughput for large batches.
Both cards share the Ada Lovelace architecture and PCIe interconnect so either meets requirements when model size stays under 20 GB.
The RTX 4000 Ada 130 watt TDP and 20 GB GDDR6 memory suffice for typical image generation workloads at lower energy cost.
The L40S 91.6 TFLOPS FP32 rating and 48 GB memory support larger simulation grids than the RTX 4000 Ada 26.7 TFLOPS FP32 rating allows.
Frequently Asked Questions
What FP32 performance do the cards deliver?▾
The L40S reaches 91.6 TFLOPS FP32 and the RTX 4000 Ada reaches 26.7 TFLOPS FP32.
Which GPU offers higher memory bandwidth?▾
The L40S offers 864 GB per second bandwidth compared with 360 GB per second on the RTX 4000 Ada.
What power limits apply to each card?▾
The L40S carries a 350 watt TDP while the RTX 4000 Ada carries a 130 watt TDP.
Do both GPUs use the same interconnect?▾
Both the L40S and the RTX 4000 Ada employ PCIe 4.0 interconnects in PCIe form factors.
How does FP8 performance compare where published?▾
The L40S lists 733 TFLOPS dense FP8 and 1466 TFLOPS FP8 with sparsity while the RTX 4000 Ada lists 427.6 TFLOPS FP8 with sparsity.
Which is cheaper to rent, the L40S or the RTX 4000 Ada?▾
Cloud rental prices for both the L40S and RTX 4000 Ada vary by provider, configuration, and availability. This page shows live pricing from 25+ providers updated every 60 seconds. Scroll to the Live Cloud Pricing section to compare current rates.
How much VRAM does the L40S have compared to the RTX 4000 Ada?▾
The L40S has 48 GB of GDDR6 memory. The RTX 4000 Ada has 20 GB of GDDR6 memory.
Can I find L40S and RTX 4000 Ada GPUs available to rent right now?▾
Yes. This page shows real-time availability across 25+ cloud GPU providers. The Live Cloud Pricing section displays only in-stock offers with current pricing.
What is the main difference between the L40S and the RTX 4000 Ada?▾
The L40S uses the Ada Lovelace architecture (2023) while the RTX 4000 Ada uses Ada Lovelace (2023). The L40S has 48 GB of GDDR6 at 864 GB/s; the RTX 4000 Ada has 20 GB of GDDR6 at 360 GB/s, so the L40S has 2.4x the memory bandwidth of the RTX 4000 Ada.
Rent these GPUs
Each GPU page lists every current on-demand offer by provider, per GPU-hour, updated every minute.
Related comparisons
How this page is made
- Specifications come from the NVIDIA, AMD and Intel datasheets for the L40S and the RTX 4000 Ada. Dense and sparse throughput are listed separately.
- Prices and availability are live: every offer shown is an in-stock, on-demand listing from a provider we track, rechecked every minute.
- The written comparison (overview, performance notes, when to choose each card, verdict, use cases and FAQ) was drafted with an AI model from the specification table above and passed an automated check that rejects any figure not in that table. It was last generated on . It contains no prices; those are always read live.
- Read how we collect the data, or report an error on this page.
Next steps
- Rent L40SEvery current offer by provider, daily price history and a price alert.
- Rent RTX 4000 ADAEvery current offer by provider, daily price history and a price alert.
- GPU price indexHow on-demand prices for the major GPUs have moved, updated daily.
- All GPUsEvery GPU we track, with current lows and provider counts.