NVIDIA RTX A4000 vs NVIDIA RTX A4500, AI & Machine Learning Comparison
NVIDIA RTX A4500 wins 5 of 10 benchmarks, averaging 29.2% faster.
Both cards were measured first-party on our bench, same suite, same test rig.
What the numbers say
The gap is widest in Llama 3.1 8B, where NVIDIA RTX A4500 leads by 33% (75.52 vs 100.2 tok/s); the closest fight is Stable Diffusion XL (24% apart); VRAM decides part of this one: NVIDIA RTX A4500 runs 6 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 A4500 | Difference |
|---|---|---|---|
| Qwen3 4B tok/s | 116.23 | 148.87 | -22% |
| Llama 3.1 8B tok/s | 75.52 | 100.2 | -25% |
| Qwen2.5-Coder 14B tok/s | 41.13 | 54.29 | -24% |
| Qwen3 32B tok/s | 0 | 0 | n/a |
| Llama 3.3 70B tok/s | 0 | 0 | n/a |
| Stable Diffusion XL images/min | 5.24 | 6.5 | -19% |
| 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 |
| Wan 2.2 5B (720p) frames/s | 0 | 0.21 | 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 A4500 on 1.
| Workflow | NVIDIA RTX A4000 | NVIDIA RTX A4500 | Difference | Cost per run |
|---|---|---|---|---|
| Full codebase review | 24.3 min | 18.4 min | NVIDIA RTX A4500 1.32x faster | $0.069 vs $0.058 |
Renting by the hour, NVIDIA RTX A4500 finishes 1 of 1 cheaper. The quicker card is not automatically the cheaper way to get the work done.
Cost to rent
| Card | Per hour |
|---|---|
| NVIDIA RTX A4000 | $0.170 |
| NVIDIA RTX A4500 | $0.190 |
NVIDIA RTX A4000 is 1.12x cheaper per hour. Cheapest on-demand rate we see across RunPod and Vast.
Specifications compared
| NVIDIA RTX A4000 | NVIDIA RTX A4500 | |
|---|---|---|
| VRAM | 16GB | 20GB |
| Architecture | Ampere | Ampere (workstation variant) |
| Memory bandwidth | 448 GB/s | 640 GB/s |
| Boost clock | 1,560 MHz | 1,575 MHz |
| TDP | 140 W | 200 W |
| Launch MSRP | $999 | $1,199 |
| Release | 2021-04-12 | 2021-11-23 |
FAQ
- Which is better for ai & machine learning: NVIDIA RTX A4000 or NVIDIA RTX A4500?
- NVIDIA RTX A4500 performs better for ai & machine learning, winning 5 of 10 benchmarks in our suite with an average 29.2% advantage.
- What are the main hardware differences between NVIDIA RTX A4000 and NVIDIA RTX A4500?
- NVIDIA RTX A4000 has 16GB VRAM and a 140W TDP, while NVIDIA RTX A4500 has 20GB VRAM and a 200W TDP.
- Does VRAM matter more than speed between NVIDIA RTX A4000 and NVIDIA RTX A4500?
- For AI, yes, NVIDIA RTX A4500 fits 1 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 A4500?
- Llama 3.1 8B: NVIDIA RTX A4500 leads by roughly 33% (75.52 vs 100.2 tok/s) in our testing.
NVIDIA RTX A4000 full review · NVIDIA RTX A4500 full review · All AI & Machine Learning rankings