LocalLLaMA

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Community to discuss about Llama, the family of large language models created by Meta AI.

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Quantizing 70b models to 4-bit, how much does performance degrade? (alien.top)

submitted 11 months ago by ae_dataviz@alien.top to c/localllama@poweruser.forum

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The title, pretty much.

I'm wondering whether a 70b model quantized to 4bit would perform better than a 7b/13b/34b model at fp16. Would be great to get some insights from the community.

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[–] Sea_Particular_4014@alien.top 1 points 11 months ago

Well... none at all if you're happy with ~1 token per second or less using GGUF CPU inference.

I have 1 x 3090 24GB and get about 2 tokens per second with partial offload. I find it usable for most stuff but many people find that too slow.

You'd need 2 x 3090 or an A6000 or something to do it quickly.