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Device profile · Windows

Best local LLMs for Nvidia GeForce RTX 4070 (12GB)

Nvidia GeForce RTX 4070 (12GB) has ~11 GB usable for model weights and runs 66 of 135 popular models. Best tool: LM Studio.

60 run well 6 tight fit 69 too heavy
Usable memory
~11 GB
Models run
66
Too large
69
Top pick
12B
Top pick Q4_K_M

Runs at Q4_K_M using ~8.9 GB of ~11 GB usable.

Runs on Nvidia GeForce RTX 4070 (12GB)

Compatible models 66 total

Best way to run models on Windows

Runtime guide Windows

Beginner: LM Studio, Best GUI on Windows, auto-detects CUDA/Vulkan backends.

Power user: Ollama (CUDA), Scriptable server; CUDA path is fastest on NVIDIA.

AMD GPUs run via Vulkan/ROCm at roughly half CUDA throughput. NVIDIA is the smooth path on Windows.

Full Windows tool guide →

FAQ

What is the best local LLM for Nvidia GeForce RTX 4070 (12GB)?

Gemma 3 12B is the strongest model that runs comfortably, using ~8.9 GB at Q4_K_M of the ~11 GB usable on Nvidia GeForce RTX 4070 (12GB).

How much of Nvidia GeForce RTX 4070 (12GB)'s memory can I use for a model?

About 11 GB. On a discrete GPU, leave ~1 GB of VRAM for the driver and display.

Which tool should I use on Windows?

LM Studio (Best GUI on Windows, auto-detects CUDA/Vulkan backends.) or Ollama (CUDA) for speed. AMD GPUs run via Vulkan/ROCm at roughly half CUDA throughput. NVIDIA is the smooth path on Windows.

Compare nearby devices

Hardware with a similar usable pool, and how many of the 135 tracked models each runs next to Nvidia GeForce RTX 4070 (12GB)'s 66.

Sources

Memory figures are estimates. See methodology.