NVIDIA B300 vs NVIDIA L40 — GPU Comparison (Jul 2026)
NVIDIA B300 (288GB HBM3e, 2,250 TFLOPS FP16, Blackwell Ultra) vs NVIDIA L40 (48GB GDDR6, 181 TFLOPS FP16, Ada Lovelace)
Bottom Line: NVIDIA B300 vs NVIDIA L40
NVIDIA B300 comes out ahead overall, leading in 4 of 6 compared categories.
Where NVIDIA B300 leads
- FP16 (2,250 TFLOPS vs 181 TFLOPS)
- VRAM (288 GB vs 48 GB)
- Memory Bandwidth (8,000 GB/s vs 864 GB/s)
- Release Year (2025 vs 2023)
Where NVIDIA L40 leads
- FP32 (90.5 TFLOPS vs 75 TFLOPS)
- TDP (300W vs 1400W)
Choose NVIDIA B300 for Frontier AI training, largest model workloads. Choose NVIDIA L40 for Inference, video processing, rendering.
Frequently Asked Questions
Is NVIDIA B300 or NVIDIA L40 better?
NVIDIA B300 leads in 4 of 6 compared categories. The right choice still depends on the factors that matter most to you.
Which has a better FP16, NVIDIA B300 or NVIDIA L40?
NVIDIA B300 (2,250 TFLOPS vs 181 TFLOPS).
Which has a better VRAM, NVIDIA B300 or NVIDIA L40?
NVIDIA B300 (288 GB vs 48 GB).
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NVIDIA B300
288GB HBM3e · Blackwell Ultra
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NVIDIA L40
48GB GDDR6 · Ada Lovelace
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|---|---|---|---|
| Specifications | |||
| Manufacturer | NVIDIA | NVIDIA | |
| Architecture | Blackwell Ultra | Ada Lovelace | |
| VRAM | 288 GB HBM3e | 48 GB GDDR6 | |
| Memory Bandwidth | 8,000 GB/s | 864 GB/s | |
| FP16 (Tensor) | 2250.0 TFLOPS | 181.0 TFLOPS | |
| FP32 | 75.0 TFLOPS | 90.5 TFLOPS | |
| TDP | 1400W | 300W | |
| Release Year | 2025 | 2023 | |
| Segment | Data center | Data center | |
| Best For | Frontier AI training largest model workloads | Inference video processing rendering | |
| Cloud Pricing | |||
| Cheapest On-Demand | — | — | |
| Cheapest Spot | — | — | |
| Providers | 1 | 0 | |
NVIDIA B300
NVIDIA L40