B200 SXM vs L40

BlackwellvsAda LovelaceUpdated 35 days ago

The B200 SXM emerges as the clear winner for prevalent AI tasks like training and high-volume inference. With 4500 TFLOPS FP16, 192 GB VRAM, and 8000 GB/s bandwidth, it crushes L40's 90.5 TFLOPS and 48 GB limits, despite $4.60 per hour average pricing. L40 fits only lightweight scenarios.

B200 SXM from $3.95/hrL40 from $0.55/hr

Specifications Compared

SpecB200L40
TDP1000W300W
VRAM192 GB48 GB
CUDA Cores18,43218,176
Memory TypeHBM3eGDDR6
ArchitectureBlackwellAda Lovelace
Form FactorsSXM, NVLPCIe
InterconnectNVLink, PCIe 6.0, InfiniBand
Tensor Cores576568
FP8 Performance9,000 TFLOPS
FP16 Performance4,500 TFLOPS90.5 TFLOPS
FP32 Performance90 TFLOPS90.5 TFLOPS
FP64 Performance45 TFLOPS
INT8 Performance9,000 TOPS724 TOPS
Memory Bandwidth8,000 GB/s864 GB/s

Performance Analysis

The B200's compute prowess dominates AI accelerators. It achieves 4500 TFLOPS in FP16, enabling rapid training of large neural networks, while L40 manages only 90.5 TFLOPS in FP16. FP32 performance aligns closely at 90 TFLOPS for B200 and 90.5 TFLOPS for L40, but B200's 9000 TFLOPS FP8 excels in inference, reducing latency for quantized models in production.

Memory architecture shapes practical limits. B200's 192 GB HBM3e VRAM and 8000 GB/s bandwidth accommodate enormous batch sizes and multi-billion parameter models without fragmentation. L40's 48 GB GDDR6 and 864 GB/s constrain it to modest scales, often necessitating techniques like gradient checkpointing that extend training durations.

TDP varies significantly: B200 requires 1000W, suiting specialized clusters with NVLink, while L40's 300W PCIe form factor supports dense, power-efficient inference farms. These traits favor B200 for throughput-critical paths and L40 for balanced operational costs.

Live Cloud Pricing

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

B200 SXM

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
Nebius
Nebius
NVIDIA B200 SXM
192GB VRAM
$3.95/GPU/hr
Cirrascale
Cirrascale
8×NVIDIA B200 SXM
192GB VRAM
$4.79/GPU/hr
$38.32/hr total (8×)
Cirrascale
Cirrascale
8×NVIDIA B200 SXM
192GB VRAM
$5.39/GPU/hr
$43.12/hr total (8×)
Cirrascale
Cirrascale
8×NVIDIA B200 SXM
192GB VRAM
$5.69/GPU/hr
$45.52/hr total (8×)
RunPod
RunPod
NVIDIA B200 SXM
192GB VRAM
$5.89/GPU/hr

L40

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
TensorDock
TensorDock
NVIDIA L40S
48GB VRAM
$0.55/GPU/hr
Available
RunPod
RunPod
NVIDIA L40
48GB VRAM
$0.82/GPU/hr
RunPod
RunPod
NVIDIA L40S
48GB VRAM
$0.86/GPU/hr
Massed Compute
Massed Compute
NVIDIA L40
48GB VRAM
$0.86/GPU/hr
Available
Massed Compute
Massed Compute
2×NVIDIA L40
48GB VRAM
$0.86/GPU/hr
$1.72/hr total (2×)
Available

Compare real-time pricing across 25+ providers

When to Choose the B200 SXM

Select the B200 SXM for workloads demanding extreme scale. Its 192 GB HBM3e VRAM handles models beyond L40's 48 GB capacity, critical for training foundation models. The 4500 TFLOPS FP16 accelerates iterations on vast datasets.

Enterprise AI platforms benefit from B200's $1.71 per hour starting rate when NVLink interconnects enable multi-GPU training at 8000 GB/s bandwidth, justifying the investment for production-grade performance.

When to Choose the L40

The L40 suits budget-conscious deployments. At $0.67 per hour average $0.89 per hour, it delivers 90.5 TFLOPS FP16 for inference on models fitting 48 GB VRAM.

Its 300W TDP and PCIe form factor enable high-density servers for prototyping or serving smaller LLMs, where 864 GB/s bandwidth meets needs without excessive infrastructure costs.

Use Cases

LLM Training
B200 SXM

B200's 192 GB VRAM and 4500 TFLOPS FP16 support trillion-parameter models. L40's 48 GB VRAM restricts scale.

LLM Inference
B200 SXM

9000 TFLOPS FP8 and 8000 GB/s bandwidth enable massive throughput. L40 suffices only for smaller deployments.

Fine-tuning
Either

B200 ideal for large models needing 192 GB; L40 cost-effective at $0.67/hr for those under 48 GB.

Stable Diffusion
L40

L40's 90.5 TFLOPS FP16 and 48 GB VRAM handle image generation efficiently at lower $0.89/hr average.

Scientific Computing
L40

L40's 90.5 TFLOPS FP32 and 300W TDP fit simulations without B200's 1000W overhead.

Frequently Asked Questions

Which has more VRAM, B200 or L40?

B200 provides 192 GB HBM3e VRAM. L40 offers 48 GB GDDR6. B200 supports far larger AI models.

What are the cloud pricing differences?

B200 SXM starts at $1.71/hr, average $4.60/hr across 13 offers. L40 starts at $0.67/hr, average $0.89/hr over 14 offers. L40 is cheaper for entry use.

Is B200 better for FP16 workloads?

B200 delivers 4500 TFLOPS FP16. L40 achieves 90.5 TFLOPS. B200 accelerates training dramatically.

How do TDPs compare?

B200 TDP is 1000W. L40 TDP is 300W. L40 enables denser, lower-power setups.

What about memory bandwidth?

B200 offers 8000 GB/s. L40 provides 864 GB/s. Higher bandwidth on B200 boosts large batch processing.

Which form factors are available?

B200 uses SXM and NVL for data centers. L40 employs PCIe for flexible integration.

Which is cheaper to rent, the B200 or the L40?

Cloud rental prices for both the B200 and L40 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 B200 have compared to the L40?

The B200 has 192 GB of HBM3e memory. The L40 has 48 GB of GDDR6 memory.

Can I find B200 and L40 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 B200 and the L40?

The B200 uses the Blackwell architecture (2024) while the L40 uses Ada Lovelace (2023). The B200 delivers 49.7x the FP16 throughput and 9.3x the memory bandwidth of the L40.

B200 SXM vs L40: 49.7x FP16 Gap, 192GB vs 48GB | GPUPerHour