72B Parameters, Zero Quantization, One GPU: Benchmarking Qwen2-VL on AMD MI300X

I loaded Qwen2-VL-72B-Instruct at full BF16 precision on a single GPU, served 64 concurrent DocVQA streams, and kept the system stable at 99.5% KV cache utilization - all for $1.99/hour on the AMD Developer Cloud. This post walks through exactly how I did it: the hardware economics that make it possible, the deployment configuration that makes it stable, and the benchmark results that prove it works. Why This Matters Building enterprise-grade visual RAG architectures - Invoice ex...