L40 vs RTX A6000

Ada LovelacevsAmpereUpdated 35 days ago

The L40 emerges as the superior choice for most machine learning applications. Its 90.5 TFLOPS FP16/FP32 and 864 GB/s bandwidth deliver over 2x compute speed and 12 percent more bandwidth than the A6000's 38.7 TFLOPS and 768 GB/s, justifying the $0.67 per hour entry despite fewer offers.

L40 from $0.55/hrRTX A6000 from $0.40/hr

Specifications Compared

SpecL40RTX-A6000
TDP300W300W
VRAM48 GB48 GB
CUDA Cores18,17610,752
Memory TypeGDDR6GDDR6
ArchitectureAda LovelaceAmpere
Form FactorsPCIePCIe
InterconnectNVLink
Tensor Cores568336
FP16 Performance90.5 TFLOPS38.7 TFLOPS
FP32 Performance90.5 TFLOPS38.7 TFLOPS
INT8 Performance724 TOPS
Memory Bandwidth864 GB/s768 GB/s

Performance Analysis

The L40's 90.5 TFLOPS in FP16 and FP32 outperforms the A6000's 38.7 TFLOPS by 134 percent, accelerating matrix multiplications central to deep learning. This gap translates to faster model training times: large neural networks complete epochs over twice as quickly on the L40. Inference workloads similarly benefit, handling more queries per second in FP16 precision.

Memory bandwidth of 864 GB/s on the L40 exceeds the A6000's 768 GB/s by 12.5 percent, enabling larger batch sizes without bottlenecks. During training, higher bandwidth reduces data loading delays for datasets exceeding 48 GB VRAM capacity. Inference at scale profits from quicker tensor movements, supporting bigger concurrent requests.

Both share 300W TDP, but the L40's Ada Lovelace efficiency yields superior throughput per watt. The A6000 includes NVLink interconnect, aiding multi-GPU setups, while the L40 relies on PCIe for scaling.

Live Cloud Pricing

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

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

RTX A6000

ProviderGPU ModelVRAMHost SpecsRegionPriceStatusAction
TensorDock
TensorDock
NVIDIA RTX A6000
48GB VRAM
$0.40/GPU/hr
Available
RunPod
RunPod
NVIDIA RTX A6000
48GB VRAM
$0.49/GPU/hr
Hyperstack
Hyperstack
NVIDIA RTX A6000
48GB VRAM
$0.50/GPU/hr
Available
Hyperstack
Hyperstack
2×NVIDIA RTX A6000
48GB VRAM
$0.50/GPU/hr
$1.00/hr total (2×)
Available
Massed Compute
Massed Compute
NVIDIA RTX A6000
48GB VRAM
$0.55/GPU/hr
Available

Compare real-time pricing across 25+ providers

When to Choose the L40

The L40 excels in compute-bound machine learning tasks like training large language models. Its 90.5 TFLOPS FP16 performance halves training durations compared to the A6000's 38.7 TFLOPS. Higher 864 GB/s bandwidth supports massive batch sizes in memory-constrained environments.

Opt for the L40 in modern cloud workflows demanding Ada Lovelace features, such as advanced tensor cores, despite starting at $0.67 per hour.

When to Choose the RTX A6000

The RTX A6000 suits budget-conscious users with its lowest pricing at $0.25 per hour. NVLink interconnect enables efficient multi-GPU communication absent on the L40, ideal for distributed scientific simulations.

Choose the A6000 for legacy Ampere-optimized software or high-availability needs, given 54 live offers versus 14 for the L40.

Use Cases

LLM Training
L40

The L40's 90.5 TFLOPS FP16 vastly outperforms the A6000's 38.7 TFLOPS, reducing training times for billion-parameter models. Higher 864 GB/s bandwidth handles large datasets efficiently.

LLM Inference
L40

L40 achieves 90.5 TFLOPS FP16 for faster token generation than A6000's 38.7 TFLOPS. Bandwidth advantage supports higher throughput in production serving.

Fine-tuning
L40

90.5 TFLOPS FP32 on L40 accelerates gradient computations over A6000's 38.7 TFLOPS. 48 GB VRAM suits both, but L40 finishes iterations quicker.

Stable Diffusion
Either

Both offer 48 GB VRAM for high-resolution generation. L40 provides faster 90.5 TFLOPS renders, but A6000's $0.25 per hour suits experimentation.

Scientific Computing
RTX A6000

A6000's NVLink enables seamless multi-GPU scaling for simulations. Lower starting price of $0.25 per hour fits extensive compute runs.

Frequently Asked Questions

Which GPU has higher FP32 performance: L40 or RTX A6000?

The L40 achieves 90.5 TFLOPS FP32, more than double the RTX A6000's 38.7 TFLOPS. This advantage speeds up general-purpose floating-point workloads by 134 percent.

Do L40 and RTX A6000 have the same VRAM?

Both provide 48 GB GDDR6 VRAM. This capacity supports large models without offloading, though L40's 864 GB/s bandwidth outperforms A6000's 768 GB/s.

What is the price difference between L40 and RTX A6000 in the cloud?

L40 starts at $0.67 per hour with an average of $0.89 per hour across 14 offers. RTX A6000 begins at $0.25 per hour, averaging $1.10 per hour across 54 offers.

Does RTX A6000 support NVLink?

The RTX A6000 includes NVLink interconnect for multi-GPU setups. The L40 uses PCIe without native NVLink, limiting certain distributed configurations.

Which is newer: L40 architecture or RTX A6000?

L40 uses Ada Lovelace from 2023, succeeding the RTX A6000's Ampere from 2020. Ada improvements yield 90.5 TFLOPS versus 38.7 TFLOPS.

Are L40 and RTX A6000 power-efficient?

Both consume 300W TDP. L40 delivers higher efficiency with 90.5 TFLOPS per 300W, compared to A6000's 38.7 TFLOPS per 300W.

Which is cheaper to rent, the L40 or the RTX A6000?

Cloud rental prices for both the L40 and RTX A6000 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 A6000?

The L40 has 48 GB of GDDR6 memory. The RTX A6000 has 48 GB of GDDR6 memory.

Can I find L40 and RTX A6000 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 A6000?

The L40 uses the Ada Lovelace architecture (2023) while the RTX A6000 uses Ampere (2020). The L40 delivers 2.3x the FP16 throughput and 1.1x the memory bandwidth of the RTX A6000.