NVIDIA L40S 48GB vs NVIDIA L20 48GB
The L40S delivers 3.1x the FP8 throughput of the L20 (733 vs 239 TFLOPS dense).
NVIDIA L40S 48GB
Full specs →NVIDIA L20 48GB
Full specs →Specifications
Performance (TFLOPS)
FLOPS by Precision
What actually differs
The L20 is the newer part: Ada Lovelace, launched in 2024, against the L40S's Ada Lovelace from 2023. Newer architectures typically add lower-precision formats and better throughput per watt, so check the precision rows your workload actually uses.
Dense throughput for the L40S against the L20: FP32 92 vs 60 TFLOPS, FP16 362 vs 120 TFLOPS, FP8 733 vs 239 TFLOPS. Sparse figures, where the vendor publishes them, appear under each dense number in the performance table.
Memory is 48 GB against 48 GB, fed at 864 GB/s versus 864 GB/s. More memory per GPU means larger models fit before you have to shard across cards, which often matters more than raw TFLOPS for inference.
Power budgets are 350 W for the L40S and 275 W for the L20. At FP32 that works out to 0.26 against 0.22 TFLOPS per watt.
For LLM training and inference, weight the FP8 and FP16 rows and memory capacity most heavily. For scientific and HPC workloads, the FP64 row is the one to read.
Frequently asked questions
Is the L40S faster than the L20?
At FP8 precision the L40S reaches 733 TFLOPS dense against 239 TFLOPS for the L20. The performance table on this page lists every published precision for both GPUs.
Which has more memory, the L40S or the L20?
Both GPUs carry 48 GB of VRAM. Memory bandwidth is 864 GB/s for the L40S and 864 GB/s for the L20.
How much power do the L40S and the L20 draw?
The L40S is rated at 350 W TDP and the L20 at 275 W. On FP32 throughput per watt, the L40S is the more efficient part.
Can I rent the L40S or the L20 in the cloud?
Yes. Live cloud listings tracked by Flopper start at $0.69 per GPU hour. The rental pricing section on this page lists current providers and rates for both GPUs.
Where to Rent
NVIDIA L40S 48GB
| Provider | Instance | Price/GPU-hr | Checked | |
|---|---|---|---|---|
DataCrunch | 1L40S.20V (spot) | $0.69 | 3h ago | View → |
Nebius | — | $0.74 | 3h ago | View → |
RunPod | L40S (Community Cloud) | $0.79 | 3h ago | View → |
Cudo Compute | epyc-genoa-l40s-graphics | $0.87 | 3h ago | View → |
Massed Compute | gpu_1x_l40s | $0.88 | 3h ago | View → |
CoreWeave | nvidia-l40s (spot) | $0.98 | 3h ago | View → |
RunPod | L40S (Secure Cloud) | $0.99 | 3h ago | View → |
DataCrunch | 1L40S.20V (on-demand) | $1.37 | 3h ago | View → |
Crusoe | — | $1.50 | 3h ago | View → |
Nebius | — | $1.55 | 3h ago | View → |
DigitalOcean | NVIDIA L40S | $1.57 | 3h ago | View → |
Vultr | vcg-l40s-16c-180g-48vram | $1.67 | 3h ago | View → |
OVHcloud | l40s-360 | $1.80 | 3h ago | View → |
CoreWeave | nvidia-l40s (on-demand) | $2.25 | 3h ago | View → |
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