Can you run Llama 3.3 70B Instruct on RTX 3060?
Llama 3.3 70B Instruct Q4_K_M on the NVIDIA GeForce RTX 3060 — verdict, VRAM math and estimated speed.
No, Llama 3.3 70B Instruct does not realistically run on the NVIDIA GeForce RTX 3060. 42 GB weights at Q4_K_M vs 10.8 GB usable VRAM; ~1 tok/s est..
→ Cheapest tracked card that runs it: NVIDIA RTX PRO 6000 Blackwell (96 GB)
VRAM math and speed are ModelFit engine estimates, not measurements. Commands are registry-verified Ollama tags.
Cite this page: ModelFit, Llama 3.3 70B Instruct on RTX 3060, https://modelfit.io/can-i-run/llama3.3-70b-q4-on-rtx-3060/, updated September 2026, CC BY 4.0.
Last updated: September 3, 2026 · Editor: ModelFit Team
Quant explorer
Switch between the quality-gated builds tracked for this exact combo. Q4_K_M stays the default recommendation; heavier Q6/Q8 builds only appear when their exact Ollama tags are registry-verified.
Why no 2-bit builds: Q1/Q2-class quants can look attractive in a memory table, but their quality loss is large enough that ModelFit excludes them from rankings instead of inflating the catalog with junk options. Usable VRAM: 10.8 GB.
Workload verdicts
Llama 3.3 70B Instruct on the RTX 3060, graded per use case from the model's registry-verified tuning and the engine's speed estimate for this exact combo.
Grades combine tag-verified tuning (a model not built for the workload caps at C) with the tok/s floor each workload needs to feel usable. A combo that partially offloads caps at C; one that does not fit is D everywhere.
Memory math: weights + context vs budget
Weights take 42 GB. Context costs extra KV-cache on top — this is where long-context sessions break on cards that technically fit the weights.
This configuration exceeds the comfortable VRAM budget by about 36 GB. Expect offload pressure or a shorter safe context.
KV-cache figures assume an fp16 cache, the llama.cpp/Ollama default. Standard GQA models use a size-class estimate (8 KV heads x 128 head dim class); hybrid linear-attention models (Qwen3.5/3.6, Qwen3-Next) use the exact per-token cost from their published config, since only their sparse full-attention layers cache KV. A q8_0 KV cache roughly halves either figure. Estimates, not measurements.
See how fast it feels
A deterministic typing simulation for Llama 3.3 70B Instruct: first token ~8.4s (slow prefill), then ~1 tokens/sec.
ModelFit engine estimate, not a measured benchmark. Real speed varies with prompt length, thermals, runtime, and KV-cache settings.
Upgrade path
The cheapest tracked card that runs Llama 3.3 70B Instruct comfortably is the NVIDIA RTX PRO 6000 Blackwell (96 GB VRAM).
See the RTX PRO 6000 pageLlama 3.3 70B Instruct on RTX 3060: FAQ
Can the NVIDIA GeForce RTX 3060 run Llama 3.3 70B Instruct?
Not realistically. Llama 3.3 70B Instruct (Q4_K_M) needs about 42 GB against 10.8 GB usable VRAM on the RTX 3060; even with heavy CPU offload it would run at unusable speed.
How much VRAM does Llama 3.3 70B Instruct need?
About 42 GB for the weights at Q4_K_M, plus KV-cache for context: roughly 5.0 GB extra at 16k tokens. The RTX 3060 budget is 10.8 GB (12 GB x 90%).
What is the best quantization of Llama 3.3 70B Instruct for the RTX 3060?
Stick with the Q4_K_M build at 42 GB — every heavier quant exceeds the 10.8 GB usable VRAM.
What GPU do I need to run Llama 3.3 70B Instruct comfortably?
The cheapest tracked card that runs Llama 3.3 70B Instruct (Q4_K_M) fully in VRAM is the NVIDIA RTX PRO 6000 Blackwell (96 GB).