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What are the performance tradeoffs of using quantization methods like GPTQ versus GGUF when running open source models on local edge hardware?

ChatGPTgpt-61 query10/31/2026
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What are the performance tradeoffs of using quantization methods like GPTQ versus GGUF when running open source models on local edge hardware?
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GPTQ quantization paper 4-bit post-training quantization GPU inference llama.cpp GGUF quantization documentation performance CPU GPUGoogle ↗
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GPTQ quantization paper 4-bit post-training quantization GPU inference llama.cpp GGUF quantization documentation performance CPU GPU
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