RTX A4000 vs RTX Pro 6000 Blackwell - GPU Benchmark Comparison

Direct performance comparison between the RTX A4000 and RTX Pro 6000 Blackwell across 14 standardized AI benchmarks collected from our production fleet. Testing shows the RTX A4000 winning 0 out of 14 benchmarks (0% win rate), while the RTX Pro 6000 Blackwell wins 14 tests. All 14 benchmark results are automatically gathered from active rental servers, providing real-world performance data rather than synthetic testing.

LLM Inference Performance: RTX A4000 64% slower

In language model inference testing across 4 different models, the RTX A4000 is 64% slower than the RTX Pro 6000 Blackwell on average. For llama3.1:8b inference, the RTX A4000 reaches 76 tokens/s while the RTX Pro 6000 Blackwell achieves 225 tokens/s, making the RTX A4000 substantially slower with a 66% deficit. Overall, the RTX A4000 wins 0 out of 4 LLM tests with an average 64% performance difference, making the RTX Pro 6000 Blackwell the better option for LLM inference tasks.

Image Generation Performance: RTX A4000 67% slower

Evaluating AI image generation across 10 different Stable Diffusion models, the RTX A4000 is 67% slower than the RTX Pro 6000 Blackwell in this category. When testing sd3.5-medium, the RTX A4000 completes generations at 34 s/image while the RTX Pro 6000 Blackwell achieves 3.5 s/image, making the RTX A4000 substantially slower with a 90% deficit. Across all 10 image generation benchmarks, the RTX A4000 wins 0 tests with an average 67% performance difference, making the RTX Pro 6000 Blackwell the better choice for Stable Diffusion, SDXL, and Flux workloads.

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