L40S vs P100

Ada LovelacevsPascalUpdated 36 days ago

The L40S emerges as the clear winner for most use cases due to its 48 GB VRAM, 362 TFLOPS FP16, and 864 GB/s bandwidth, enabling 30-40x faster AI training and inference over P100's 9.3 TFLOPS and 16 GB limits. Modern workloads demand these specs, with competitive pricing from $0.40 per hour outweighing P100's niche legacy role.

L40S from $0.55/hrP100 from $0.60/hr

Specifications Compared

SpecL40SP100
TDP350W250W
VRAM48 GB16 GB
CUDA Cores18,1763,584
Memory TypeGDDR6XHBM2
ArchitectureAda LovelacePascal
Form FactorsPCIeSXM2, PCIe
InterconnectPCIe 4.0NVLink
Tensor Cores568
FP8 Performance724 TFLOPS
FP16 Performance362 TFLOPS9.3 TFLOPS
FP32 Performance91 TFLOPS9.3 TFLOPS
FP64 Performance1.4 TFLOPS4.7 TFLOPS
INT8 Performance724 TOPS
Memory Bandwidth864 GB/s732 GB/s

Performance Analysis

The L40S outperforms P100 dramatically in compute: 362 TFLOPS FP16 versus 9.3 TFLOPS enables up to 39 times faster mixed-precision training for deep learning models. Its FP32 at 91 TFLOPS doubles effective throughput for single-precision scientific simulations compared to P100's 9.3 TFLOPS. FP8 at 724 TFLOPS on L40S accelerates inference for quantized large language models, a capability absent in P100.

Memory differences impact real-world usage profoundly: L40S's 48 GB VRAM supports batch sizes three times larger than P100's 16 GB, reducing overhead in training large models. The 864 GB/s bandwidth versus 732 GB/s sustains higher throughput during data-intensive operations like Stable Diffusion generation. In inference, L40S handles concurrent requests efficiently due to superior FP16 ratios.

Power efficiency varies: L40S at 350W delivers 1.03 TFLOPS per watt in FP16, outperforming P100's 0.037 TFLOPS per watt at 250W. PCIe 4.0 on L40S provides modern scalability, while P100's NVLink excels in legacy multi-node HPC clusters.

Live Cloud Pricing

Real-time prices from 25+ providers. Updated every 60 seconds.

L40S

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
TensorDock
TensorDock
NVIDIA L40S
48GB VRAM
$0.55/GPU/hr
Available
RunPod
RunPod
NVIDIA L40S
48GB VRAM
$0.86/GPU/hr
Massed Compute
Massed Compute
4×NVIDIA L40S
48GB VRAM
$0.88/GPU/hr
$3.52/hr total (4×)
Available
Massed Compute
Massed Compute
2×NVIDIA L40S
48GB VRAM
$0.88/GPU/hr
$1.76/hr total (2×)
Available
Massed Compute
Massed Compute
NVIDIA L40S
48GB VRAM
$0.88/GPU/hr
Available

P100

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
LeaderGPU
LeaderGPU
2×NVIDIA Tesla P100
16GB VRAM
$0.60/GPU/hr
$1.20/hr total (2×)
Available

Compare real-time pricing across 25+ providers

When to Choose the L40S

The L40S excels in contemporary AI workloads requiring high VRAM and compute. For LLM training or inference, its 48 GB GDDR6X and 362 TFLOPS FP16 handle models up to billions of parameters without swapping, unlike P100's 16 GB limit. Cloud availability across 18 offers starting at $0.40 per hour makes it viable for scalable deployments.

Users prioritizing Ada Lovelace features like FP8 at 724 TFLOPS choose L40S for efficient quantized inference and Stable Diffusion tasks.

When to Choose the P100

The P100 suits legacy applications locked to Pascal architecture, such as older scientific computing codes optimized for 9.3 TFLOPS FP32 and NVLink interconnects. Its single cloud offer at $0.60 per hour offers predictability for low-volume, compatibility-driven runs where recoding is impractical.

Budget-conscious users with small batch sizes under 16 GB VRAM select P100 for basic FP16 tasks at 250W TDP, avoiding L40S's higher average $1.10 per hour cost.

Use Cases

LLM Training
L40S

L40S's 48 GB VRAM and 362 TFLOPS FP16 support large batch sizes and mixed-precision training, far exceeding P100's 16 GB and 9.3 TFLOPS.

LLM Inference
L40S

FP8 at 724 TFLOPS and 864 GB/s bandwidth on L40S enable high-throughput quantized inference, outperforming P100's limited 9.3 TFLOPS FP16.

Fine-tuning
L40S

L40S handles fine-tuning with 91 TFLOPS FP32 and ample VRAM for adapter methods, avoiding P100's memory constraints at 16 GB.

Stable Diffusion
L40S

L40S's 362 TFLOPS FP16 accelerates diffusion models with larger resolutions, supported by 48 GB VRAM versus P100's 16 GB shortfall.

Scientific Computing
Either

L40S offers 91 TFLOPS FP32 for modern simulations, but P100's NVLink suits legacy HPC codes optimized for Pascal at 9.3 TFLOPS.

Frequently Asked Questions

What is the VRAM difference between L40S and P100?

L40S provides 48 GB GDDR6X VRAM, three times more than P100's 16 GB HBM2. This allows L40S to manage larger models and batches. P100 suits smaller datasets under 16 GB.

Which GPU has higher FP16 performance?

L40S delivers 362 TFLOPS FP16, approximately 39 times P100's 9.3 TFLOPS. This boosts deep learning training speeds significantly. Inference also benefits from the gap.

How do cloud prices compare for L40S and P100?

L40S starts at $0.40 per hour with an average of $1.10 across 18 offers. P100 is $0.60 per hour across one offer. Availability favors L40S for scaling.

What are the architectures of L40S and P100?

L40S uses 2023 Ada Lovelace architecture with PCIe 4.0. P100 employs 2016 Pascal with NVLink. Ada supports modern features like FP8 at 724 TFLOPS.

Which has higher memory bandwidth?

L40S achieves 864 GB/s, surpassing P100's 732 GB/s by 18 percent. This improves data transfer for training. Larger batches thrive on L40S.

Is L40S or P100 better for AI training?

L40S dominates with 362 TFLOPS FP16 and 48 GB VRAM for large-scale training. P100's 9.3 TFLOPS limits it to legacy or small jobs. Choose L40S for efficiency.

Which is cheaper to rent, the L40S or the P100?

Cloud rental prices for both the L40S and P100 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 P100?

The L40S has 48 GB of GDDR6X memory. The P100 has 16 GB of HBM2 memory.

Can I find L40S and P100 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 P100?

The L40S uses the Ada Lovelace architecture (2023) while the P100 uses Pascal (2016). The L40S delivers 38.9x the FP16 throughput and 1.2x the memory bandwidth of the P100.

L40S vs P100: 38.9x FP16 Gap, 48GB vs 16GB | GPUPerHour