RunLLMLocal

Compare · GPUs

Arc B580 vs RTX 3060 for local LLMs

Both fit the same 16 models, but the Arc B580 generates about 27% faster thanks to 456 GB/s of memory bandwidth versus 360 GB/s.

VerdictThe Arc B580 is the better card for local AI

Both fit the same 16 models, but the Arc B580 generates about 27% faster thanks to 456 GB/s of memory bandwidth versus 360 GB/s.

VRAM12 GB
Memory bandwidth456 GB/s
Models that fit fully16 / 39
Run with offload18
Largest that fitsMistral Nemo 12B
RTX 3060NVIDIA
VRAM12 GB
Memory bandwidth360 GB/s
Models that fit fully16 / 39
Run with offload18
Largest that fitsMistral Nemo 12B

Every model at 8K context with the best quantization that fits. Offload assumes 32 GB of system RAM. Green marks the better result. Rows where the two differ come first.

ModelArc B580RTX 3060
Qwen3 0.6BRuns~470 tok/sQ8_0Runs~370 tok/sQ8_0
Gemma 3 1BRuns~280 tok/sQ8_0Runs~220 tok/sQ8_0
Llama 3.2 1BRuns~230 tok/sQ8_0Runs~180 tok/sQ8_0
Llama 3.2 3BRuns~87 tok/sQ8_0Runs~69 tok/sQ8_0
Phi-4 Mini 3.8BRuns~74 tok/sQ8_0Runs~58 tok/sQ8_0
Qwen3 4BRuns~70 tok/sQ8_0Runs~55 tok/sQ8_0
Gemma 3 4BRuns~65 tok/sQ8_0Runs~51 tok/sQ8_0
Qwen3.5 4BRuns~60 tok/sQ8_0Runs~47 tok/sQ8_0
Mistral 7B v0.3Runs~39 tok/sQ8_0Runs~31 tok/sQ8_0
Qwen2.5-Coder 7BRuns~37 tok/sQ8_0Runs~29 tok/sQ8_0
Llama 3.1 8BRuns~35 tok/sQ8_0Runs~28 tok/sQ8_0
DeepSeek-R1 Distill 8BRuns~35 tok/sQ8_0Runs~28 tok/sQ8_0
Qwen3 8BRuns~34 tok/sQ8_0Runs~27 tok/sQ8_0
Qwen3.5 9BRuns~39 tok/sQ6_KRuns~30 tok/sQ6_K
Gemma 4 12BRuns~42 tok/sQ4_K_MRuns~33 tok/sQ4_K_M
Gemma 3 12BOffload~6.2 tok/sQ4_K_MOffload~4.9 tok/sQ4_K_M
Mistral Nemo 12BRuns~41 tok/sQ4_K_MRuns~33 tok/sQ4_K_M
Phi-4 14BOffload~5.1 tok/sQ4_K_MOffload~4.0 tok/sQ4_K_M
Qwen3 14BOffload~5.1 tok/sQ4_K_MOffload~4.0 tok/sQ4_K_M
DeepSeek-R1 Distill 14BOffload~5.1 tok/sQ4_K_MOffload~4.0 tok/sQ4_K_M
gpt-oss 20BOffload~10 tok/sQ4_K_MOffload~8.6 tok/sQ4_K_M
Codestral 22BOffload~3.2 tok/sQ4_K_MOffload~2.7 tok/sQ4_K_M
Mistral Small 3 24BOffload~2.9 tok/sQ4_K_MOffload~2.5 tok/sQ4_K_M
Devstral Small 24BOffload~2.9 tok/sQ4_K_MOffload~2.5 tok/sQ4_K_M
Gemma 4 26B-A4B (MoE)Offload~9.7 tok/sQ4_K_MOffload~8.7 tok/sQ4_K_M
Gemma 3 27BOffload~2.4 tok/sQ4_K_MOffload~2.2 tok/sQ4_K_M
Qwen3.6 27BOffload~2.5 tok/sQ4_K_MOffload~2.2 tok/sQ4_K_M
Qwen3 30B-A3B (MoE)Offload~11 tok/sQ4_K_MOffload~10 tok/sQ4_K_M
Qwen3-Coder 30B-A3BOffload~11 tok/sQ4_K_MOffload~10 tok/sQ4_K_M
Gemma 4 31BOffload~2.1 tok/sQ4_K_MOffload~1.9 tok/sQ4_K_M
Qwen3 32BOffload~2.0 tok/sQ4_K_MOffload~1.8 tok/sQ4_K_M
DeepSeek-R1 Distill 32BOffload~2.0 tok/sQ4_K_MOffload~1.8 tok/sQ4_K_M
Qwen2.5-Coder 32BOffload~2.0 tok/sQ4_K_MOffload~1.8 tok/sQ4_K_M
Qwen3.6 35B-A3B (MoE)Offload~12 tok/sQ4_K_MOffload~11 tok/sQ4_K_M
Llama 3.3 70BWon’t fitWon’t fit
DeepSeek-R1 Distill 70BWon’t fitWon’t fit
Llama 4 Scout 109B-A17BWon’t fitWon’t fit
gpt-oss 120BWon’t fitWon’t fit
Qwen3 235B-A22B (MoE)Won’t fitWon’t fit

Which should you buy?

The Arc B580 is the better card for local AI. Both fit the same 16 models, but the Arc B580 generates about 27% faster thanks to 456 GB/s of memory bandwidth versus 360 GB/s.

Software matters as much as memory. NVIDIA cards work out of the box with Ollama, LM Studio and llama.cpp through CUDA. AMD cards run through ROCm or Vulkan and Intel Arc through Vulkan or IPEX-LLM; both work, but setup takes longer and new features usually land on NVIDIA first.

See every result on its own page: Arc B580 and RTX 3060.

Questions

Is the Arc B580 or the RTX 3060 better for running LLMs?

The Arc B580 is the better card for local AI. Both fit the same 16 models, but the Arc B580 generates about 27% faster thanks to 456 GB/s of memory bandwidth versus 360 GB/s.

Which models can the Arc B580 run that the RTX 3060 can't?

None. Both cards fit the same models; the difference is speed.

Does the Arc B580 or RTX 3060 need anything else to run local AI?

Only the software. Install Ollama or LM Studio, pick a model that fits in VRAM, and it runs on the GPU. 32 GB of system RAM helps when a model spills over, but that path is much slower.

More comparisons

Estimates from memory size and bandwidth at 8K context. Real speed varies with software, drivers and settings.

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