NVIDIA RTX 4000 Ada 20GB vs NVIDIA L40 48GB
The L40 delivers 69% more FP8 throughput than the RTX 4000 Ada (362 vs 214 TFLOPS dense). The L40 also carries 28 GB more memory (48 GB vs 20 GB).
NVIDIA RTX 4000 Ada 20GB
Full specs →NVIDIA L40 48GB
Full specs →Specifications
Performance (TFLOPS)
FLOPS by Precision
What actually differs
Both GPUs launched in 2023: the RTX 4000 Ada on Ada Lovelace and the L40 on Ada Lovelace.
Dense throughput for the RTX 4000 Ada against the L40: FP32 27 vs 91 TFLOPS, FP8 214 vs 362 TFLOPS. Sparse figures, where the vendor publishes them, appear under each dense number in the performance table.
Memory is 20 GB against 48 GB, fed at 360 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 130 W for the RTX 4000 Ada and 300 W for the L40. At FP32 that works out to 0.21 against 0.30 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 RTX 4000 Ada faster than the L40?
At FP8 precision the L40 reaches 362 TFLOPS dense against 214 TFLOPS for the RTX 4000 Ada. The performance table on this page lists every published precision for both GPUs.
Which has more memory, the RTX 4000 Ada or the L40?
The L40 carries 48 GB of VRAM versus 20 GB for the RTX 4000 Ada. Memory bandwidth is 360 GB/s for the RTX 4000 Ada and 864 GB/s for the L40.
How much power do the RTX 4000 Ada and the L40 draw?
The RTX 4000 Ada is rated at 130 W TDP and the L40 at 300 W. On FP32 throughput per watt, the L40 is the more efficient part.
Can I rent the RTX 4000 Ada or the L40 in the cloud?
Yes. Live cloud listings tracked by Flopper start at $0.16 per GPU hour. The rental pricing section on this page lists current providers and rates for both GPUs.
Where to Rent
NVIDIA L40 48GB
| Provider | Configuration | Price/GPU-hr | Checked | |
|---|---|---|---|---|
 RunPod | 1× L40 48GB Community | $0.69 | 2h ago | View → |
 CoreWeave | 8× L40 48GB Spot | $0.78 | 2h ago | View → |
 Hyperstack | 1× L40 48GB Spot | $0.80 | 2h ago | View → |
| RunPod | 1× L40 48GB | $0.82 | 2h ago | View → |
 Massed Compute | 1× L40 48GB | $0.88 | 2h ago | View → |
| Hyperstack | 1× L40 48GB | $1.00 | 2h ago | View → |
| CoreWeave | 8× L40 48GB | $1.25 | 2h ago | View → |
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