NVIDIA L4 vs NVIDIA RTX PRO 4500 Blackwell, AI & Machine Learning Comparison
NVIDIA RTX PRO 4500 Blackwell wins 8 of 10 benchmarks, averaging 177% faster.
Both cards were measured first-party on our bench, same suite, same test rig.
What the numbers say
The gap is widest in Qwen3-32B, where NVIDIA RTX PRO 4500 Blackwell leads by 203% (12.42 vs 37.61 tok/s); the closest fight is Stable Diffusion XL (153% apart); VRAM decides part of this one: NVIDIA RTX PRO 4500 Blackwell runs 138 of our 12 AI workloads while the other card runs 9, models that don't fit score zero.
Benchmark results head-to-head
| Benchmark | NVIDIA L4 | NVIDIA RTX PRO 4500 Blackwell | Difference |
|---|---|---|---|
| Qwen3-4B tok/s | 84 | 221.92 | -62% |
| Llama 3.1 8B tok/s | 50.45 | 146.19 | -65% |
| Qwen2.5-Coder 14B tok/s | 27.46 | 80.09 | -66% |
| Qwen3-32B tok/s | 12.42 | 37.61 | -67% |
| Llama 3.3 70B tok/s | 0 | 0 | n/a |
| Stable Diffusion XL images/min | 5.18 | 13.1 | -60% |
| Z-Image Turbo images/min | 2.475 | 6.45 | -62% |
| 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 |
Whole-job comparison
How long each card takes to finish a complete pipeline, not just one model. NVIDIA L4 is faster on 0 of 2; NVIDIA RTX PRO 4500 Blackwell on 2.
| Workflow | NVIDIA L4 | NVIDIA RTX PRO 4500 Blackwell | Difference |
|---|---|---|---|
| 24-frame storyboard | 12.2 min | 6.2 min | NVIDIA RTX PRO 4500 Blackwell 1.97x faster |
| Full codebase review | 36.4 min | 12.5 min | NVIDIA RTX PRO 4500 Blackwell 2.92x faster |
Specifications compared
| NVIDIA L4 | NVIDIA RTX PRO 4500 Blackwell | |
|---|---|---|
| VRAM | 24GB | 32GB |
| Architecture | Ada Lovelace | Blackwell |
| Memory bandwidth | 300 GB/s | 896 GB/s |
| Boost clock | 2,040 MHz | 2,407 MHz |
| TDP | 72 W | 200 W |
| Launch MSRP | $2,500 | $2,600 |
| Release | 2023-03-21 | 2025-08-01 |
FAQ
- Which is better for ai & machine learning: NVIDIA L4 or NVIDIA RTX PRO 4500 Blackwell?
- NVIDIA RTX PRO 4500 Blackwell performs better for ai & machine learning, winning 8 of 10 benchmarks in our suite with an average 177% advantage.
- What are the main hardware differences between NVIDIA L4 and NVIDIA RTX PRO 4500 Blackwell?
- NVIDIA L4 has 24GB VRAM and a 72W TDP, while NVIDIA RTX PRO 4500 Blackwell has 32GB VRAM and a 200W TDP.
- Does VRAM matter more than speed between NVIDIA L4 and NVIDIA RTX PRO 4500 Blackwell?
- For AI, yes, NVIDIA RTX PRO 4500 Blackwell fits 22 more of our 12 workloads than NVIDIA L4. 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 L4 and NVIDIA RTX PRO 4500 Blackwell?
- Qwen3-32B: NVIDIA RTX PRO 4500 Blackwell leads by roughly 203% (12.42 vs 37.61 tok/s) in our testing.
NVIDIA L4 full review · NVIDIA RTX PRO 4500 Blackwell full review · All AI & Machine Learning rankings