NVIDIA B300 对比 NVIDIA GeForce RTX 4080 — GPU 比较 (Apr 2026)
NVIDIA B300 (288GB HBM3e, 2,250 TFLOPS FP16, Blackwell Ultra) vs NVIDIA GeForce RTX 4080 (16GB GDDR6X, 48.7 TFLOPS FP16, Ada Lovelace)
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NVIDIA B300
288GB HBM3e · Blackwell Ultra
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NVIDIA GeForce RTX 4080
16GB GDDR6X · Ada Lovelace
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|---|---|---|---|
| 规格 | |||
| 制造商 | NVIDIA | NVIDIA | |
| 架构 | Blackwell Ultra | Ada Lovelace | |
| VRAM | 288 GB HBM3e | 16 GB GDDR6X | |
| 带宽 | 8,000 GB/s | 717 GB/s | |
| FP16 (Tensor) | 2250.0 TFLOPS | 48.7 TFLOPS | |
| FP32 | 75.0 TFLOPS | 24.4 TFLOPS | |
| TDP | 1400W | 320W | |
| 发布年份 | 2025 | 2022 | |
| 细分市场 | Data center | Consumer | |
| 适用场景 | Frontier AI training largest model workloads | Gaming inference fine-tuning | |
| 云端价格 | |||
| 最便宜的按需 | — | — | |
| 最便宜的竞价 | — | — | |
| 供应商 | 1 | 0 | |
NVIDIA B300
NVIDIA GeForce RTX 4080