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HomeCan I run it?Llama 3.2 3BLlama 3.2 3B on an RTX 3070 Ti

Yes. Llama 3.2 3B at Q8_0 needs about 4.9 GB, and the GeForce RTX 3070 Ti has 8.0 GB usable at a ~4k context.

Can I run Llama 3.2 3B on an RTX 3070 Ti?

Llama 3.2 3B at Q8_0 needs about 4.9 GB, and the GeForce RTX 3070 Ti has 8.0 GB usable. That figure is 8 GB of VRAM on the spec sheet, of which 8.0 GB is usable for weights and cache, at 608 GB/s memory bandwidth. A tiny Meta Llama, aimed at phones and low-VRAM cards. Quality is limited; it is the model you pick when memory is tight. These are estimates from our formula, not measured benchmarks.

Quant that fits
Q8_0 Fits with headroom
Memory needed
4.9 GB at Q8_0, ~4k context
Usable VRAM
8.0 GB of 8 GB VRAM
Est. tokens/sec
107–151 estimate

Llama-3.2-3B-Instruct · GeForce RTX 3070 Ti · Everything this machine runs · Q4 vs Q8 vs FP16

Memory at each quant

QuantNeed vs 8.0 GBVerdict
Q4_K_M3.2 GBQ4Fits
Q8_04.9 GBQ8Fits
FP168.4 GBFP16Won’t fit

Estimated tokens per second

Estimate: 107–151 tokens/sec at Q8_0. This is a bandwidth-derived range, not a bench. Efficiency is a 60–85% GPU band from How we calculate.

Context headroom

At Q8_0, this machine has headroom out to about 16k tokens under our KV estimate. Longer chats need more memory for the cache. Figures assume an FP16 KV cache.

Context headroom for Llama 3.2 3B on an RTX 3070 Ti at Q8_0
ContextKV cache (FP16)Total at Q8_0Verdict
4k0.5 GB4.9 GBFits
8k0.9 GB5.4 GBFits
16k1.9 GB6.3 GBFits
32k3.8 GB8.2 GBWon’t fit
64k7.5 GB12.0 GBWon’t fit
128k15.0 GB19.5 GBWon’t fit

From the model’s config. Try other sizes in the VRAM calculator or see the context length guide.

What to do instead

Other hardware for Llama 3.2 3B

Other models on an RTX 3070 Ti

Quick answers

Can I run Llama 3.2 3B on an RTX 3070 Ti?
Yes. Llama 3.2 3B at Q8_0 needs about 4.9 GB, and the GeForce RTX 3070 Ti has 8.0 GB usable.
How much VRAM does Llama 3.2 3B need?
About 3.2 GB at Q4_K_M, 4.9 GB at Q8_0 and 8.4 GB at FP16, estimated for a ~4k context.
How fast is Llama 3.2 3B on an RTX 3070 Ti?
Our estimate is 107–151 tokens per second at Q8_0. It is not a measured benchmark.
What context length can I use?
At Q8_0, our KV estimate supports up to about 16k tokens before the cache pushes the total over usable memory.

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