NVIDIA RTX A4000 vs NVIDIA RTX PRO 6000 Blackwell Workstation Edition, AI & Machine Learning Comparison
NVIDIA RTX PRO 6000 Blackwell Workstation Edition wins 9 of 9 benchmarks, averaging 286.7% faster.
Both cards were measured first-party on our bench, same suite, same test rig.
What the numbers say
The gap is widest in Stable Diffusion XL, where NVIDIA RTX PRO 6000 Blackwell Workstation Edition leads by 433% (5.24 vs 27.94 images/min); the closest fight is Qwen3 4B (212% apart); VRAM decides part of this one: NVIDIA RTX PRO 6000 Blackwell Workstation Edition runs 144 of our 12 AI workloads while the other card runs 4, models that don't fit score zero.
Benchmark results head-to-head
| Benchmark | NVIDIA RTX A4000 | NVIDIA RTX PRO 6000 Blackwell Workstation Edition | Difference |
|---|---|---|---|
| Qwen3 4B tok/s | 116.23 | 362.81 | -68% |
| Llama 3.1 8B tok/s | 75.52 | 258.37 | -71% |
| Qwen2.5-Coder 14B tok/s | 41.13 | 147.74 | -72% |
| Qwen3 32B tok/s | 0 | 70.13 | n/a |
| Llama 3.3 70B tok/s | 0 | 34.87 | n/a |
| Stable Diffusion XL images/min | 5.24 | 27.94 | -81% |
| FLUX.1 dev images/min | 0 | 6.921 | n/a |
| FLUX.1 Kontext dev images/min | 0 | 3.086 | n/a |
| Qwen-Image-Edit images/min | 0 | 2.64 | n/a |
Whole-job comparison
How long each card takes to finish a complete pipeline, not just one model. NVIDIA RTX A4000 is faster on 0 of 1; NVIDIA RTX PRO 6000 Blackwell Workstation Edition on 1.
| Workflow | NVIDIA RTX A4000 | NVIDIA RTX PRO 6000 Blackwell Workstation Edition | Difference |
|---|---|---|---|
| Full codebase review | 24.3 min | 6.8 min | NVIDIA RTX PRO 6000 Blackwell Workstation Edition 3.59x faster |
Specifications compared
| NVIDIA RTX A4000 | NVIDIA RTX PRO 6000 Blackwell Workstation Edition | |
|---|---|---|
| VRAM | 16GB | 96GB |
| Architecture | Ampere | Blackwell |
| Memory bandwidth | 448 GB/s | 1792 GB/s |
| Boost clock | 1,560 MHz | 2,617 MHz |
| TDP | 140 W | 600 W |
| Launch MSRP | $999 | $8,565 |
| Release | 2021-04-12 | 2025-03-18 |
FAQ
- Which is better for ai & machine learning: NVIDIA RTX A4000 or NVIDIA RTX PRO 6000 Blackwell Workstation Edition?
- NVIDIA RTX PRO 6000 Blackwell Workstation Edition performs better for ai & machine learning, winning 9 of 9 benchmarks in our suite with an average 286.7% advantage.
- What are the main hardware differences between NVIDIA RTX A4000 and NVIDIA RTX PRO 6000 Blackwell Workstation Edition?
- NVIDIA RTX A4000 has 16GB VRAM and a 140W TDP, while NVIDIA RTX PRO 6000 Blackwell Workstation Edition has 96GB VRAM and a 600W TDP.
- Does VRAM matter more than speed between NVIDIA RTX A4000 and NVIDIA RTX PRO 6000 Blackwell Workstation Edition?
- For AI, yes, NVIDIA RTX PRO 6000 Blackwell Workstation Edition fits 4 more of our 12 workloads than NVIDIA RTX A4000. 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 RTX A4000 and NVIDIA RTX PRO 6000 Blackwell Workstation Edition?
- Stable Diffusion XL: NVIDIA RTX PRO 6000 Blackwell Workstation Edition leads by roughly 433% (5.24 vs 27.94 images/min) in our testing.
NVIDIA RTX A4000 full review · NVIDIA RTX PRO 6000 Blackwell Workstation Edition full review · All AI & Machine Learning rankings