🚀 B200 starting at $3.75/hr. The best price you'll find. DC in US West → (Access it from button on top after login).

Get Your B200 →
Start Building
Guide

L40S GPU Cloud: Choosing the Right GPU for Production Inference

Most GPU comparisons start with the biggest card and work backward to justify it. L40S starts with what inference actually needs, and prices infrastructure accordingly.

Author photo
packet.ai Team
July 21, 2026

L40S is priced at $0.92/GPU-hour on packet.ai because its specs match what most production inference actually needs: 48GB of VRAM and FP8 Tensor Cores tuned for token generation, without paying for multi-GPU interconnects or partitioning most single-model deployments never use.

Key takeaways

  • L40S runs $0.92/GPU-hour Dedicated on packet.ai, or $604/month flat.
  • 4th-generation Tensor Cores with FP8 sparsity are the real driver of inference throughput, not the FP32 TFLOPS figure most spec sheets lead with.
  • 48GB of GDDR6 covers 13B models at FP16 natively and 34B at 4-bit, which is the large majority of production inference deployments.
  • A100 80GB costs more because it adds NVLink and MIG partitioning, features built for multi-GPU training and multi-tenant serving, not single-model inference.
  • The right comparison isn't which GPU is cheapest. It's which one matches what your workload actually uses.

The usual way to shop for an inference GPU is to start with the biggest card and work backward to justify the cost. A more useful starting point is the workload itself: what precision you're serving at, how large the model is, and whether you need multi-GPU coordination at all. L40S is built around the answer most inference teams actually have to those questions.

L40S GPU Cloud: What It Costs and What It's Built For

L40S runs on the Ada Lovelace architecture, the same generation as the RTX 4090, but built as a data-center card: no GeForce driver license restriction, passive cooling for dense rack deployment, and ECC-backed GDDR6 rather than consumer memory.

NVIDIA

L40S

$0.92/GPU-hr

on packet.ai · Dedicated

VRAM

48 GB GDDR6

Bandwidth

864 GB/s

FP32

91.6 TFLOPS

TDP

350W

On packet.ai, L40S runs $0.92/GPU-hour Dedicated or $604/month flat, provisioning in under 5 minutes with a 99.99% SLA. The price reflects a focused spec sheet: enough memory and inference-tuned compute for single-model serving, without the multi-GPU interconnect hardware that a training-oriented card carries.

Why FP8 Tensor Cores Matter More Than Raw VRAM for Inference

The FP32 TFLOPS number on a spec sheet is usually the first thing people compare, and it's the wrong number for inference. L40S's 4th-generation Tensor Cores support FP8 with sparsity, which is the precision most production inference serving actually runs at, and it's where the card's real throughput advantage shows up.

For teams running vLLM, TensorRT-LLM, or Hugging Face TGI, this translates directly into token generation speed. L40S's 48GB comfortably serves 7B-13B models with room for reasonable batch sizes and KV cache, and stretches to 34B at 4-bit quantization with a tighter memory budget. NVIDIA's own Triton Inference Server also runs well on L40S, useful if you're standardizing serving infrastructure across model types rather than committing to a single framework.

⚡ Note

48GB comfortably covers the model sizes most inference deployments actually run. 70B+ models or full FP16 precision at scale genuinely need more memory, which is where a larger card earns its place, not as an upgrade path from L40S by default.

L40S vs A100: Matching Hardware to Workload, Not Just Price

L40S and A100 solve different problems, and the price gap between them reflects real hardware differences rather than one card simply being a discount version of the other.

Spec L40S A100 80GB
VRAM 48 GB GDDR6 80 GB HBM2e
Bandwidth 864 GB/s 2 TB/s
NVLink None 3.0, 600 GB/s
MIG partitioning Not supported Up to 7 instances
packet.ai price $0.92/hr $1.43/hr

The 48GB vs 80GB gap matters less than it looks for pure inference, since L40S already covers 13B models at FP16 natively and 34B at 4-bit, the large majority of production deployments. Where A100 earns its premium is NVLink for multi-GPU training and MIG for splitting one card across multiple tenants or models, both genuinely valuable, just not for a single-model inference workload.

NVLink and MIG aren't free. They're part of why A100 costs more, and they only pay off if your workload actually uses them.

NVLink 3.0 (600 GB/s) is for multi-GPU gradient synchronization. It matters during distributed training across multiple cards. A single-card inference deployment never touches it.

MIG (up to 7 instances) is for splitting one card across tenants. Useful for serving several smaller models simultaneously with hardware isolation. Irrelevant if you're running one model on one dedicated card.

If your deployment doesn't need either, L40S delivers the same core inference capability at a lower price, not because it's missing something you wanted, but because it was designed without paying for capability the workload wouldn't use. If you're fine-tuning with multi-GPU gradient synchronization or serving multiple tenants off one card, A100's premium is the right tradeoff, and L40S would be the wrong choice regardless of price.

Decision Framework: Four Questions

1. Does your model fit in 48GB at your target precision? If yes, L40S covers it without any tradeoff for single-model inference.

2. Do you need multi-GPU training with gradient synchronization? If yes, A100's NVLink is the deciding factor, not price.

3. Do you need to split one card across multiple tenants or models? MIG partitioning is A100-only. L40S has no equivalent.

4. Are you serving inference at FP8 or a comparable low precision? This is where L40S's Tensor Cores actually earn their keep. If you're stuck at FP32, you're not using the card's real strength.

Common Mistakes When Choosing an Inference GPU

Sizing by FP32 TFLOPS instead of FP8 inference throughput. L40S's FP8 Tensor Core performance is the number that matters for inference speed, not the FP32 figure most spec sheets lead with.

Paying for NVLink or MIG you'll never use. A100's premium over L40S buys features specific to multi-GPU training and multi-tenant partitioning. Single-model inference gets no benefit from either.

Assuming more VRAM always wins. If your model comfortably fits in 48GB, A100's extra 32GB is capacity you're paying for and not using.

Treating GPU choice as a single spec comparison instead of a workload match. The right card depends on precision, model size, and whether you need multi-GPU coordination, not which card has the higher number on one spec.

Deploying L40S on packet.ai

Once you've confirmed your model fits in 48GB and your workload doesn't need NVLink or MIG, deployment is straightforward. L40S provisions in under 5 minutes on the Dedicated tier, with a 99.99% SLA and single-tenant isolation, no scheduler contention from other workloads competing for the same card.

Both hourly and monthly billing are available. The hourly rate makes sense for testing or short-lived workloads; the monthly flat rate saves roughly 35% over hourly once you know you'll be running the card consistently, worth calculating before committing to either.

For teams running Hugging Face models specifically, the same one-click TGI app template covered in our Llama GPU sizing guide deploys cleanly on L40S for any model that fits the 48GB budget. If you're sizing a model outside that guide, packet.ai's general VRAM requirements guide maps most current models to the right card, L40S included. Current rates for L40S, A100, and every other GPU on packet.ai are on the pricing page.

If you're running ComfyUI or an LLM tool like oobabooga or Ollama rather than a dedicated inference server, L40S's 48GB applies the same way, since VRAM constraints don't change based on which tool loads the model.

Frequently asked questions

On packet.ai, L40S runs $0.92 per GPU-hour on the Dedicated tier, or $604 per month on a flat monthly rate, roughly 35% below the hourly cost.
For single-model inference that fits in 48GB, L40S delivers the same core capability at a lower price, since NVLink and MIG, the features A100's premium pays for, don't benefit single-model serving. A100 pulls ahead when you need multi-GPU training or multi-tenant partitioning.
L40S's 48GB handles models up to 13B parameters at FP16 natively, and up to roughly 34B at 4-bit quantization. For 70B+ models or full FP16 precision on larger models, an A100 80GB or larger card is a better fit.
No. L40S has no NVLink, so multi-GPU setups communicate over PCIe rather than a dedicated interconnect, and it has no MIG partitioning, so it can't be split into isolated instances for multiple tenants. Both features are specific to A100 and newer data-center cards, and matter for multi-GPU training or multi-tenant serving rather than single-model inference.

Last reviewed: July 21, 2026. Pricing and availability confirmed directly against packet.ai's live GPU pages at time of writing. Rates and stock status change frequently.

Waste less compute.

Same models. Same API. Fraction of the cost. Start free — no credit card required.

Start Building →

More from the blog