Flopper.io GPU Comparison Sheet
September 30, 2026
flopper.io/compare/nvidia-geforce-rtx-4090-24gb-vs-nvidia-l40-48gbNVIDIA GeForce RTX 4090 24GB vs NVIDIA L40 48GB
Side by side datacenter GPU specifications from the Flopper.io database.
Overview
| NVIDIA GeForce RTX 4090 24GB | NVIDIA L40 48GB | |
|---|---|---|
| FP32 TFLOPS | 82.6 | 90.5 |
| Memory | 24 GB | 48 GB |
| Memory Bandwidth | 1.0 TB/s | 864 GB/s |
| TDP | 450 W | 300 W |
Performance by Precision
| Precision | NVIDIA GeForce RTX 4090 24GB peak TFLOPS (dense) | NVIDIA L40 48GB peak TFLOPS (dense) |
|---|---|---|
| FP64 | 1.3 | — |
| FP32 | 82.6 | 90.5 |
| TF32 | 82.6 | 90.5 |
| BF16 | 165.2 | 181.1 |
| FP16 | 165.2 | 181.1 |
| FP8 | 330.3 | 362.0 |
| FP6 | — | — |
| FP4 | — | — |
| INT8 | 660.6 | 362.0 |
| INT4 | — | 724.0 |
Specifications
| NVIDIA GeForce RTX 4090 24GB | NVIDIA L40 48GB | |
|---|---|---|
| Architecture | Ada Lovelace | Ada Lovelace |
| Process Node | 4nm | 4nm |
| Launch Year | 2022 | 2023 |
| Form Factor | PCIe | PCIe |
| Memory Type | — | GDDR6 |
| Interface Width | — | — |
| Interconnect | — | — |
| TDP | 450 W | 300 W |
| FP32 Efficiency | 0.18 TFLOPS/W | 0.30 TFLOPS/W |