NVIDIA B300 vs NVIDIA Quadro RTX 8000, AI & Machine Learning Comparison
NVIDIA B300 wins 8 of 8 benchmarks, averaging 3154.1% faster.
NVIDIA Quadro RTX 8000's numbers are anchored estimates calibrated against our measured cards, pending first-party measurement. Treat small gaps as ties.
What the numbers say
The gap is widest in FLUX.1 dev, where NVIDIA B300 leads by 12068% (20.807 vs 0.171 images/min); the closest fight is Qwen3 4B (162% apart); VRAM decides part of this one: NVIDIA Quadro RTX 8000 runs 140 of our 12 AI workloads while the other card runs 7, models that don't fit score zero.
Benchmark results head-to-head
| Benchmark | NVIDIA B300 | NVIDIA Quadro RTX 8000 | Difference |
|---|---|---|---|
| Qwen3 4B tok/s | 333.34 | 127.01 | +162% |
| Llama 3.1 8B tok/s | 287.23 | 84.68 | +239% |
| Qwen2.5-Coder 14B tok/s | 158.49 | 46.74 | +239% |
| Qwen3 32B tok/s | 83.68 | 21.98 | +281% |
| Llama 3.3 70B tok/s | 47.97 | 0 | n/a |
| Stable Diffusion XL images/min | 29.2 | 6.18 | +372% |
| Z-Image Turbo images/min | 39.675 | 0.45 | +8717% |
| FLUX.1 dev images/min | 20.807 | 0.171 | +12068% |
Whole-job comparison
How long each card takes to finish a complete pipeline, not just one model. NVIDIA B300 is faster on 2 of 2; NVIDIA Quadro RTX 8000 on 0.
| Workflow | NVIDIA B300 | NVIDIA Quadro RTX 8000 | Difference |
|---|---|---|---|
| 24-frame storyboard | 1.5 min | 54.9 min | NVIDIA B300 36.60x faster |
| Full codebase review | 6.3 min | 21.4 min | NVIDIA B300 3.39x faster |
Specifications compared
| NVIDIA B300 | NVIDIA Quadro RTX 8000 | |
|---|---|---|
| VRAM | 288GB | 48GB |
| Architecture | Blackwell Ultra | Turing (TU102) |
| Memory bandwidth | 8 TB/s | 672 GB/s |
| Boost clock | n/a | 1,770 MHz |
| TDP | 1400 W | 260 W |
| Launch MSRP | $40,000 | $9,999 |
| Release | 2025-11-01 | 2018-08-27 |
FAQ
- Which is better for ai & machine learning: NVIDIA B300 or NVIDIA Quadro RTX 8000?
- NVIDIA B300 performs better for ai & machine learning, winning 8 of 8 benchmarks in our suite with an average 3154.1% advantage.
- What are the main hardware differences between NVIDIA B300 and NVIDIA Quadro RTX 8000?
- NVIDIA B300 has 288GB VRAM and a 1400W TDP, while NVIDIA Quadro RTX 8000 has 48GB VRAM and a 260W TDP.
- Does VRAM matter more than speed between NVIDIA B300 and NVIDIA Quadro RTX 8000?
- For AI, yes, NVIDIA Quadro RTX 8000 fits 2 more of our 12 workloads than NVIDIA B300. A model that exceeds VRAM doesn't run slower, it doesn't run at all, so the card that fits the model wins that workload outright.
- Where is the biggest performance difference between NVIDIA B300 and NVIDIA Quadro RTX 8000?
- FLUX.1 dev: NVIDIA B300 leads by roughly 2064% (20.807 vs 0.171 images/min) in our testing.
NVIDIA B300 full review · NVIDIA Quadro RTX 8000 full review · All AI & Machine Learning rankings