NVIDIA B300 vs NVIDIA GeForce RTX 4080 — GPU Comparison (Jul 2026)
NVIDIA B300 (288GB HBM3e, 2,250 TFLOPS FP16, Blackwell Ultra) vs NVIDIA GeForce RTX 4080 (16GB GDDR6X, 48.7 TFLOPS FP16, Ada Lovelace)
Bottom Line: NVIDIA B300 vs NVIDIA GeForce RTX 4080
NVIDIA B300 comes out ahead overall, leading in 5 of 6 compared categories.
Where NVIDIA B300 leads
- FP16 (2,250 TFLOPS vs 48.7 TFLOPS)
- VRAM (288 GB vs 16 GB)
- Memory Bandwidth (8,000 GB/s vs 717 GB/s)
- FP32 (75 TFLOPS vs 24.4 TFLOPS)
- Release Year (2025 vs 2022)
Where NVIDIA GeForce RTX 4080 leads
- TDP (320W vs 1400W)
Choose NVIDIA B300 for Frontier AI training, largest model workloads. Choose NVIDIA GeForce RTX 4080 for Gaming, inference, fine-tuning.
Frequently Asked Questions
Is NVIDIA B300 or NVIDIA GeForce RTX 4080 better?
NVIDIA B300 leads in 5 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 GeForce RTX 4080?
NVIDIA B300 (2,250 TFLOPS vs 48.7 TFLOPS).
Which has a better VRAM, NVIDIA B300 or NVIDIA GeForce RTX 4080?
NVIDIA B300 (288 GB vs 16 GB).
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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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|---|---|---|---|
| Specifications | |||
| Manufacturer | NVIDIA | NVIDIA | |
| Architecture | Blackwell Ultra | Ada Lovelace | |
| VRAM | 288 GB HBM3e | 16 GB GDDR6X | |
| Memory Bandwidth | 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 | |
| Release Year | 2025 | 2022 | |
| Segment | Data center | Consumer | |
| Best For | Frontier AI training largest model workloads | Gaming inference fine-tuning | |
| Cloud Pricing | |||
| Cheapest On-Demand | — | — | |
| Cheapest Spot | — | — | |
| Providers | 1 | 0 | |
NVIDIA B300
NVIDIA GeForce RTX 4080