Specifications Compared
| Spec | L40S | RTX-3080 |
|---|---|---|
| TDP | 350W | 320W |
| VRAM | 48 GB | 10-12 GB |
| CUDA Cores | 18,176 | 8,704 |
| Memory Type | GDDR6X | GDDR6X |
| Architecture | Ada Lovelace | Ampere |
| Form Factors | PCIe | PCIe |
| Interconnect | PCIe 4.0 | |
| Tensor Cores | 568 | 272 |
| FP8 Performance | 724 TFLOPS | |
| FP16 Performance | 362 TFLOPS | 29.8 TFLOPS |
| FP32 Performance | 91 TFLOPS | 29.8 TFLOPS |
| FP64 Performance | 1.4 TFLOPS | |
| INT8 Performance | 724 TOPS | |
| Memory Bandwidth | 864 GB/s | 760 GB/s |
Performance Analysis
The L40S outperforms the RTX 3080 Ti dramatically in compute: 362 TFLOPS FP16 enables faster training and inference for half-precision models, while 91 TFLOPS FP32 supports single-precision tasks like scientific simulations 3 times better than the 29.8 TFLOPS of the RTX 3080 Ti. FP8 at 724 TFLOPS on the L40S further accelerates quantized inference for large language models. Memory bandwidth of 864 GB/s on the L40S versus 760 GB/s on the RTX 3080 Ti allows larger batch sizes in training, reducing overhead for datasets exceeding 12 GB VRAM limits. In real-world terms, the L40S handles models like 70B parameter LLMs without splitting, whereas the RTX 3080 Ti struggles beyond 7B parameters due to 12 GB constraints. TDP stands at 350W for L40S and 320W for RTX 3080 Ti, implying similar power efficiency per TFLOP but higher absolute output from L40S.
Live Cloud Pricing
Real-time prices from 25+ providers. Updated every 60 seconds.
L40S
| Provider | GPU Model | VRAM | Host Specs | Region | Price | Status | Action | |
|---|---|---|---|---|---|---|---|---|
 TensorDock | NVIDIA L40S 48GB VRAM | 48GB | 0 vCPU 0GB RAM | Wolverhampton | $0.55/GPU/hr | Available | ||
 RunPod | NVIDIA L40S 48GB VRAM | 48GB | 16 vCPU 94GB RAM | 🌍global | $0.86/GPU/hr | |||
 Massed Compute | NVIDIA L40S 48GB VRAM | 48GB | 12 vCPU 72GB RAM 625GB Storage | Iowa | $0.88/GPU/hr | Available | ||
Massed Compute | 2×NVIDIA L40S 48GB VRAM | 48GB | 24 vCPU 144GB RAM 1250GB Storage | Iowa | $0.88/GPU/hr $1.76/hr total (2×) | Available | ||
Massed Compute | NVIDIA L40S 48GB VRAM | 48GB | 12 vCPU 72GB RAM 625GB Storage | Iowa | $0.88/GPU/hr | Available |
When to Choose the L40S
Professionals select the L40S for large-scale AI training or inference requiring 48 GB VRAM, such as fine-tuning 30B+ parameter models where the RTX 3080 Ti's 12 GB falls short. Its 362 TFLOPS FP16 and 864 GB/s bandwidth excel in high-throughput cloud deployments, justifying $1.13 per hour average cost for production workloads.
When to Choose the RTX 3080 Ti
Budget-conscious users choose the RTX 3080 Ti for prototyping small models under 7B parameters or Stable Diffusion tasks, leveraging 29.8 TFLOPS FP32 at $0.14 per hour average. It suffices for inference on 10 GB datasets where speed trumps capacity.
Use Cases
L40S's 48 GB VRAM and 362 TFLOPS FP16 support training large models with big batches, unlike RTX 3080 Ti's 12 GB limit.
724 TFLOPS FP8 and 864 GB/s bandwidth on L40S handle high-concurrency inference for 70B models; RTX 3080 Ti suits only small-scale.
91 TFLOPS FP32 and ample VRAM make L40S ideal for fine-tuning mid-to-large models; RTX 3080 Ti works for tiny ones.
RTX 3080 Ti's 29.8 TFLOPS suffices for standard generations at low cost; L40S accelerates batch processing with 48 GB VRAM.
L40S's 91 TFLOPS FP32 outperforms RTX 3080 Ti's 29.8 TFLOPS for simulations needing high memory bandwidth.
Frequently Asked Questions
Which GPU has more VRAM: L40S or RTX 3080 Ti?▾
The L40S provides 48 GB GDDR6X VRAM, four times the RTX 3080 Ti's 12 GB. This enables larger models on L40S without multi-GPU setups.
How do FP16 performance levels compare?▾
L40S achieves 362 TFLOPS FP16, over 12 times the RTX 3080 Ti's 29.8 TFLOPS. Such disparity accelerates AI training significantly.
What are the cloud pricing differences?▾
L40S starts at $0.40 per hour (average $1.13) across 23 offers; RTX 3080 Ti at $0.08 per hour (average $0.14) across 4 offers. RTX 3080 Ti offers better value for light tasks.
Does L40S have higher memory bandwidth?▾
Yes, L40S delivers 864 GB/s versus RTX 3080 Ti's 760 GB/s. This supports bigger batch sizes in ML workflows.
Which is newer: L40S or RTX 3080 Ti?▾
L40S uses 2023 Ada Lovelace architecture; RTX 3080 Ti uses 2020 Ampere. L40S includes FP8 at 724 TFLOPS absent on RTX 3080 Ti.
Compare TDPs of L40S and RTX 3080 Ti.▾
L40S TDP is 350W; RTX 3080 Ti is 320W. L40S provides more performance per watt given its 362 TFLOPS FP16.
Which is cheaper to rent, the L40S or the RTX 3080?▾
Cloud rental prices for both the L40S and RTX 3080 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 3080?▾
The L40S has 48 GB of GDDR6X memory. The RTX 3080 has 10 to 12 GB of GDDR6X memory.
Can I find L40S and RTX 3080 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 3080?▾
The L40S uses the Ada Lovelace architecture (2023) while the RTX 3080 uses Ampere (2020). The L40S delivers 12.1x the FP16 throughput and 1.1x the memory bandwidth of the RTX 3080.