Specifications Compared
| Spec | L40 | RTX 4080 |
|---|---|---|
| TDP | 300W | 320W |
| VRAM | 48 GB | 16 GB |
| CUDA Cores | 18,176 | 9,728 |
| FP8 (dense) | 362 TFLOPS | 194.9 TFLOPS |
| Memory Type | GDDR6 | GDDR6X |
| Architecture | Ada Lovelace | Ada Lovelace |
| FP16 (dense) | 181.05 TFLOPS | 97.5 TFLOPS |
| Form Factors | PCIe | PCIe |
| INT8 (dense) | 362 TOPS | 389.9 TOPS |
| Interconnect | PCIe 4.0 | PCIe 4.0 |
| Tensor Cores | 568 | 304 |
| FP32 Performance | 90.5 TFLOPS | 48.7 TFLOPS |
| Memory Bandwidth | 864 GB/s | 717 GB/s |
| FP8 (with sparsity) | 724 TFLOPS | 389.8 TFLOPS |
| FP16 (with sparsity) | 362.1 TFLOPS | 195 TFLOPS |
| INT8 (with sparsity) | 724 TOPS | 779.8 TOPS |
Performance Analysis
The FP16 dense performance delta shows the L40 at 181.05 TFLOPS versus 97.5 TFLOPS on the RTX 4080 which translates to faster matrix operations during both training and inference passes. The same pattern holds when comparing FP16 with sparsity where the L40 reaches 362.1 TFLOPS against 195 TFLOPS on the RTX 4080. Memory bandwidth differences affect achievable batch sizes because the L40 sustains 864 GB/s while the RTX 4080 sustains 717 GB/s allowing larger batches before memory becomes the limiter. FP32 figures follow the same ratio with the L40 at 90.5 TFLOPS and the RTX 4080 at 48.7 TFLOPS indicating proportional gains in single precision scientific kernels.
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.
L40
| Provider | Region | GPUs | Per GPU / hr | Instance / hr | Deploy |
|---|---|---|---|---|---|
| ThunderCompute | USA | 2 | $0.79 | $1.58 | Deploy |
| Massed Compute | us-central-2 | 1 | $0.86 | — | Deploy |
| QuantaCloud | us-midwest-2 | 4 | $0.94 | $3.75 | Deploy |
| Hyperstack | CANADA-1 | 4 | $1.00 | $4.00 | Deploy |
4 providers in stock, 17 offers (cheapest per provider shown). All L40 offers, price history and alerts
RTX 4080
RTX 4080 is not offered on-demand by any provider we track right now. See the RTX 4080 rental page for last-seen listed prices and a price alert.
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When to Choose the L40
The L40 suits workloads that require 48 GB VRAM and 181.05 TFLOPS dense FP16 such as training or fine tuning models that exceed 16 GB capacity. Its 300 W TDP also reduces power draw relative to the 320 W rating of the RTX 4080 while delivering 90.5 TFLOPS FP32 for scientific computing tasks.
When to Choose the RTX 4080
The RTX 4080 fits inference scenarios where 389.9 TOPS dense INT8 throughput and a compact form factor matter more than raw memory capacity. Its 16 GB VRAM remains sufficient for smaller models that do not require the 48 GB offered by the L40.
Use Cases
The L40 supplies 48 GB VRAM and 181.05 TFLOPS dense FP16 which support larger models than the 16 GB and 97.5 TFLOPS dense FP16 of the RTX 4080.
The L40 provides 864 GB/s bandwidth and 362.1 TFLOPS FP16 with sparsity allowing higher throughput than the RTX 4080 at 717 GB/s and 195 TFLOPS FP16 with sparsity.
The L40 offers 48 GB VRAM and 362 TFLOPS dense FP8 which accommodate larger fine tuning batches than the 16 GB and 194.9 TFLOPS dense FP8 of the RTX 4080.
Both cards deliver Ada Lovelace architecture with comparable FP8 dense figures near 362 TFLOPS on the L40 and 194.9 TFLOPS on the RTX 4080 yet memory needs determine final selection.
The L40 reaches 90.5 TFLOPS FP32 and 300 W TDP which provide higher single precision performance at lower power than the 48.7 TFLOPS FP32 and 320 W TDP of the RTX 4080.
Frequently Asked Questions
What is the FP32 performance of each GPU?▾
The L40 delivers 90.5 TFLOPS FP32. The RTX 4080 delivers 48.7 TFLOPS FP32. The L40 therefore sustains nearly double the single precision throughput.
Which GPU has higher memory bandwidth?▾
The L40 reaches 864 GB/s. The RTX 4080 reaches 717 GB/s. Higher bandwidth on the L40 supports larger batches before data movement becomes the bottleneck.
What TDP ratings apply to the L40 and RTX 4080?▾
The L40 lists a 300 W TDP. The RTX 4080 lists a 320 W TDP. The L40 operates at lower power while delivering higher FP32 and FP16 throughput.
Do both GPUs use the same interconnect?▾
Both the L40 and RTX 4080 employ PCIe 4.0. Form factor remains PCIe for each card.
Which is cheaper to rent, the L40 or the RTX 4080?▾
Cloud rental prices for both the L40 and RTX 4080 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 L40 have compared to the RTX 4080?▾
The L40 has 48 GB of GDDR6 memory. The RTX 4080 has 16 GB of GDDR6X memory.
Can I find L40 and RTX 4080 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 L40 and the RTX 4080?▾
The L40 uses the Ada Lovelace architecture (2023) while the RTX 4080 uses Ada Lovelace (2022). The L40 delivers 1.9x the dense FP16 throughput (181.05 vs 97.5 TFLOPS, both without sparsity) and 1.2x the memory bandwidth of the RTX 4080.
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 L40 and the RTX 4080. 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 L40Every current offer by provider, daily price history and a price alert.
- Rent RTX 4080Every 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.