NVIDIA Quadro RTX 6000 (Turing) vs NVIDIA RTX A4000, AI & Machine Learning Comparison
NVIDIA Quadro RTX 6000 (Turing) wins 4 of 9 benchmarks, averaging 11.4% faster.
NVIDIA Quadro RTX 6000 (Turing)'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 Stable Diffusion XL, where NVIDIA Quadro RTX 6000 (Turing) leads by 13% (5.94 vs 5.24 images/min); the closest fight is Qwen3 4B (8% apart); VRAM decides part of this one: NVIDIA Quadro RTX 6000 (Turing) runs 4 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 Quadro RTX 6000 (Turing) | NVIDIA RTX A4000 | Difference |
|---|---|---|---|
| Qwen3 4B tok/s | 125.23 | 116.23 | +8% |
| Llama 3.1 8B tok/s | 84.21 | 75.52 | +12% |
| Qwen2.5-Coder 14B tok/s | 46.54 | 41.13 | +13% |
| Qwen3 32B tok/s | 0 | 0 | n/a |
| Llama 3.3 70B tok/s | 0 | 0 | n/a |
| Stable Diffusion XL images/min | 5.94 | 5.24 | +13% |
| FLUX.1 dev images/min | 0 | 0 | n/a |
| FLUX.1 Kontext dev images/min | 0 | 0 | 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 Quadro RTX 6000 (Turing) is faster on 1 of 1; NVIDIA RTX A4000 on 0.
| Workflow | NVIDIA Quadro RTX 6000 (Turing) | NVIDIA RTX A4000 | Difference |
|---|---|---|---|
| Full codebase review | 21.5 min | 24.3 min | NVIDIA Quadro RTX 6000 (Turing) 1.13x faster |
Specifications compared
| NVIDIA Quadro RTX 6000 (Turing) | NVIDIA RTX A4000 | |
|---|---|---|
| VRAM | 24GB | 16GB |
| Architecture | Turing (TU102) | Ampere |
| Memory bandwidth | 672 GB/s | 448 GB/s |
| Boost clock | 1,770 MHz | 1,560 MHz |
| TDP | 260 W | 140 W |
| Launch MSRP | $6,300 | $999 |
| Release | 2018-08-14 | 2021-04-12 |
FAQ
- Which is better for ai & machine learning: NVIDIA Quadro RTX 6000 (Turing) or NVIDIA RTX A4000?
- NVIDIA Quadro RTX 6000 (Turing) performs better for ai & machine learning, winning 4 of 9 benchmarks in our suite with an average 11.4% advantage.
- What are the main hardware differences between NVIDIA Quadro RTX 6000 (Turing) and NVIDIA RTX A4000?
- NVIDIA Quadro RTX 6000 (Turing) has 24GB VRAM and a 260W TDP, while NVIDIA RTX A4000 has 16GB VRAM and a 140W TDP.
- Does VRAM matter more than speed between NVIDIA Quadro RTX 6000 (Turing) and NVIDIA RTX A4000?
- For AI, yes, NVIDIA Quadro RTX 6000 (Turing) fits 2 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 Quadro RTX 6000 (Turing) and NVIDIA RTX A4000?
- Stable Diffusion XL: NVIDIA Quadro RTX 6000 (Turing) leads by roughly 13% (5.94 vs 5.24 images/min) in our testing.
NVIDIA Quadro RTX 6000 (Turing) full review · NVIDIA RTX A4000 full review · All AI & Machine Learning rankings