Exact VRAM memory allocation, dynamic KV-cache requirements, and tensor parallelism slicing for Qwen-2.5 32B Coder & Math quantized in FP16 Uncompressed Native deployed on NVIDIA H100 80GB SXM5.
Uncompressed weights alone consume 65.0 GB. In addition, the KV cache scales with context tokens and concurrency batch size, plus ~1.8 GB CUDA driver overhead.
If total weights + KV cache exceeds the 80 GB boundary, Tensor Parallelism (TP) or vLLM PagedAttention multi-GPU sharding across NVLink is required.
Modern AWQ and GPTQ retain >98% perplexity compared to FP16 while halving memory footprint and doubling memory-bandwidth-bound token generation speed.