NVIDIA RTX PRO 4000 Blackwell vs NVIDIA RTX PRO 4500 Blackwell, AI & Machine Learning Comparison
NVIDIA RTX PRO 4500 Blackwell wins 9 of 11 benchmarks, averaging 33.6% 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 4500 Blackwell leads by 53% (8.56 vs 13.1 images/min); the closest fight is LTX-Video (distilled) (15% apart); VRAM decides part of this one: NVIDIA RTX PRO 4500 Blackwell runs 9 of our 12 AI workloads while the other card runs 8, models that don't fit score zero.
Benchmark results head-to-head
| Benchmark | NVIDIA RTX PRO 4000 Blackwell | NVIDIA RTX PRO 4500 Blackwell | Difference |
|---|---|---|---|
| Qwen3 4B tok/s | 179.58 | 221.92 | -19% |
| Llama 3.1 8B tok/s | 112.36 | 146.19 | -23% |
| Qwen2.5-Coder 14B tok/s | 60.62 | 80.09 | -24% |
| Qwen3 32B tok/s | 27.8 | 37.61 | -26% |
| Llama 3.3 70B tok/s | 0 | 0 | n/a |
| Stable Diffusion XL images/min | 8.56 | 13.1 | -35% |
| Z-Image Turbo images/min | 4.425 | 6.45 | -31% |
| FLUX.1 dev images/min | 0 | 1.414 | n/a |
| FLUX.1 Kontext dev images/min | 0 | 0.879 | n/a |
| Qwen-Image-Edit images/min | 0 | 0 | n/a |
| LTX-Video (distilled) frames/s | 3.1 | 3.58 | -13% |
Whole-job comparison
How long each card takes to finish a complete pipeline, not just one model. NVIDIA RTX PRO 4000 Blackwell is faster on 1 of 3; NVIDIA RTX PRO 4500 Blackwell on 2.
| Workflow | NVIDIA RTX PRO 4000 Blackwell | NVIDIA RTX PRO 4500 Blackwell | Difference |
|---|---|---|---|
| 24-frame storyboard | 6.4 min | 6.2 min | NVIDIA RTX PRO 4500 Blackwell 1.04x faster |
| 60-second AI short film | 10.2 min | 10.6 min | NVIDIA RTX PRO 4000 Blackwell 1.04x faster |
| Full codebase review | 16.5 min | 12.5 min | NVIDIA RTX PRO 4500 Blackwell 1.32x faster |
Specifications compared
| NVIDIA RTX PRO 4000 Blackwell | NVIDIA RTX PRO 4500 Blackwell | |
|---|---|---|
| VRAM | 24GB | 32GB |
| Architecture | Blackwell | Blackwell |
| Memory bandwidth | 672 GB/s | 896 GB/s |
| Boost clock | 2,617 MHz | 2,407 MHz |
| TDP | 140 W | 200 W |
| Launch MSRP | $1,500 | $2,600 |
| Release | 2025-08-01 | 2025-08-01 |
FAQ
- Which is better for ai & machine learning: NVIDIA RTX PRO 4000 Blackwell or NVIDIA RTX PRO 4500 Blackwell?
- NVIDIA RTX PRO 4500 Blackwell performs better for ai & machine learning, winning 9 of 11 benchmarks in our suite with an average 33.6% advantage.
- What are the main hardware differences between NVIDIA RTX PRO 4000 Blackwell and NVIDIA RTX PRO 4500 Blackwell?
- NVIDIA RTX PRO 4000 Blackwell has 24GB VRAM and a 140W TDP, while NVIDIA RTX PRO 4500 Blackwell has 32GB VRAM and a 200W TDP.
- Does VRAM matter more than speed between NVIDIA RTX PRO 4000 Blackwell and NVIDIA RTX PRO 4500 Blackwell?
- For AI, yes, NVIDIA RTX PRO 4500 Blackwell fits 2 more of our 12 workloads than NVIDIA RTX PRO 4000 Blackwell. 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 PRO 4000 Blackwell and NVIDIA RTX PRO 4500 Blackwell?
- Stable Diffusion XL: NVIDIA RTX PRO 4500 Blackwell leads by roughly 53% (8.56 vs 13.1 images/min) in our testing.
NVIDIA RTX PRO 4000 Blackwell full review · NVIDIA RTX PRO 4500 Blackwell full review · All AI & Machine Learning rankings