GPU Advisor

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02:41

2026-10-11

dev.to

large-language-models

Your 7B Model Fits on a 4090 — Until You Open a 128K Context Window

A developer's analysis shows that a 7B model's KV cache, not its weights, is what forces long-context inference onto larger GPUs: Llama 3.1 8B consumes roughly 128 KiB per token in FP16, so a 128K con…

// co-occurs with top 7 entities

Llama 3.1 8B 1 Llama 3.1 70B 1 Mistral 7B v0.3 1 Qwen2.5 7B 1 RTX 4090 1 vLLM 1 PagedAttention 1

// topics top 4 topics

large language models 1 ai infrastructure 1 mlops 1 ai tools 1