Yes — with 8.1 GB to spare

Qwen3 8B at Q4_K_M fits your GeForce RTX 4060 Ti 16 GB entirely on the GPU at 8K context, at an estimated 38 tokens per second. Past 65K the KV cache pushes it over — quantise the cache to q8_0, or step down a quantisation, to go longer.

Fully on GPU 8K context Q4_K_M · 4.6 GB Apache 2.0 Released Apr 2025

Apache-2.0 alternative to Llama 3.1 8B, with a switchable thinking mode.

What hardware do I need for Qwen3 8B? →

The VRAM budget

weights 4.6 GB
Weights 4.6 GB KV cache @ 8K 1.13 GB Runtime overhead 0.6 GB Free 8.1 GB of 14.4 GB

Quantisation ladder

QuantWeightsTotal @ 8KMax contextTok/sQualityFit
F16 15.3 GB 17.0 GB ~7.0 Reference 2.6 GB over
Q8_0 8.1 GB 9.8 GB 40K 22 −0.1% ppl Long context
Q6_K 6.3 GB 8.0 GB 53K 28 −0.4% ppl Long context
Q5_K_M 5.4 GB 7.1 GB 59K 32 −0.8% ppl Long context
Q4_K_M 4.6 GB 6.3 GB 65K 38 −1.9% ppl Recommended
Q3_K_M 3.7 GB 5.5 GB 71K 47 −5.4% ppl Long context
Q2_K 3.2 GB 4.9 GB 75K 55 −15% ppl Long context

Quality is the published perplexity delta against f16 weights. Max context assumes an f16 KV cache; q8_0 roughly doubles it.

How to run it

terminal
$ ollama pull qwen3:8b
$ OLLAMA_CONTEXT_LENGTH=8192 \
    ollama run qwen3:8b

The default. One binary, a model registry, an OpenAI-compatible port. More on Ollama.

01Download is 4.6 GB. Keep it on an SSD — a first load off a spinning disk takes minutes.
02Close anything else holding VRAM. A browser with hardware acceleration can sit on 1–2 GB.
03There is room to go to 65K context on this card.
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