Comparison
NVIDIA GeForce RTX 3060 12 GB vs Intel Arc B580 for local LLMs
NVIDIA GeForce RTX 3060 12 GB (12GB usable, 360 GB/s) vs Intel Arc B580 (12GB usable, 456 GB/s) for local LLMs: capacity decides which models load at all, memory bandwidth decides the speed tier. Verdicts below are computed per model at each machine's best clean quant.
Intel Arc B580 verdicts are beta: fit is physics and holds, but speed tiers aren't calibrated yet for that hardware class.
| Spec | NVIDIA GeForce RTX 3060 12 GB | Intel Arc B580 |
|---|---|---|
| Type | NVIDIA GPU | Intel GPU |
| Memory for models | 12 GB VRAM | 12 GB VRAM |
| Memory bandwidth | 360 GB/s | 456 GB/s |
| Price | $329 MSRP | $249 MSRP |
| TDP | 170 W | 190 W |
| Backends | CUDA · Vulkan | Vulkan |
| Gaming (estimate) | 1080p-class | 1080p-class |
Specs as of 2026-07-08 — sources on each product page. Gaming tier is estimated from FP32 compute, not a game benchmark.
What each can run, head to head
The 12 most-downloaded models we track, each graded at that machine's best clean-fit quant (llama.cpp, 8K context). Click a verdict for the full breakdown.
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Verdicts computed from published specs and measured GGUF sizes — how the math works.