

NVIDIA B300 wins 12 of 12 benchmarks, averaging 324.5% faster.
Both cards were measured first-party on our bench, same suite, same test rig.
The gap is widest in Stable Diffusion XL, where NVIDIA B300 leads by 677% (3.76 vs 29.2 images/min); the closest fight is Qwen3 4B (116% apart); VRAM decides part of this one: NVIDIA B300 runs 140 of our 12 AI workloads while the other card runs 3, models that don't fit score zero.
| Benchmark | NVIDIA GeForce RTX 3070 Ti | NVIDIA B300 | Difference |
|---|---|---|---|
| Qwen3 4B tok/s | 154.65 | 333.34 | -54% |
| Llama 3.1 8B tok/s | 102.13 | 287.23 | -64% |
| Qwen2.5-Coder 14B tok/s | 0 | 158.49 | n/a |
| Qwen3 32B tok/s | 0 | 83.68 | n/a |
| Llama 3.3 70B tok/s | 0 | 47.97 | n/a |
| Stable Diffusion XL images/min | 3.76 | 29.2 | -87% |
| Z-Image Turbo images/min | 0 | 39.675 | n/a |
| FLUX.1 dev images/min | 0 | 20.807 | n/a |
| FLUX.1 Kontext dev images/min | 0 | 10.329 | n/a |
| Qwen-Image-Edit images/min | 0 | 8.14 | n/a |
| LTX-Video (distilled) frames/s | 0 | 31.87 | n/a |
| Wan 2.2 5B (720p) frames/s | 0 | 2.94 | n/a |
| NVIDIA GeForce RTX 3070 Ti | NVIDIA B300 | |
|---|---|---|
| VRAM | 8GB | 288GB |
| Architecture | Ampere (GA104) | Blackwell Ultra |
| Memory bandwidth | 608 GB/s | 8 TB/s |
| Boost clock | 1,770 MHz | n/a |
| TDP | 290 W | 1400 W |
| Launch MSRP | $599 | $40,000 |
| Release | 2021-06-10 | 2025-11-01 |
NVIDIA GeForce RTX 3070 Ti full review · NVIDIA B300 full review · All AI & Machine Learning rankings