RTX 3060 12GB vs Arc B580
RTX 3060 12GB vs Arc B580: £352.99 vs n/a in the UK (2026-10-16), £/GB of VRAM, which AI models each runs, and a verdict.
| RTX 3060 12GB | Arc B580 | |
|---|---|---|
 | GPU | |
| Brand | NVIDIA | Intel |
| VRAM | 12 GB GDDR6 | 12 GB GDDR6 |
| Memory bus | 192-bit | 192-bit |
| Cheapest new UK price | £352.99 at Box 2026-10-16 21:53 also AWD-IT £355.95, Scan £459.98 | no current UK listing found |
| Price history | Tracking since 16 Oct 2026🔔 Alert me | – |
| £ per GB VRAM | £29.42 | – |
| Biggest model at Q4 (est.) | Phi-4 14B | Phi-4 14B |
| Biggest model at Q8 (est.) | Qwen3 8B | Qwen3 8B |
| Models that fit at Q4 | 10 of 21 | 10 of 21 |
| Software | CUDA (widest support in llama.cpp, Ollama, vLLM, PyTorch) | ROCm / Vulkan (works in llama.cpp, Ollama, LM Studio; fewer tools than CUDA) |
| Specs | TechPowerUp · our page | TechPowerUp · our page |
Verdict
- Both have 12 GB, so they fit the same models by our estimate; speed then depends on memory bandwidth and software.
- If you want the easiest setup and the widest tool support, NVIDIA's CUDA is still the safer pick; AMD works well in llama.cpp-based apps.
This is a value-for-memory verdict for local AI, not a gaming benchmark. We haven't measured tokens/sec.
FAQ
Is the RTX 3060 12GB or Arc B580 better for local LLMs?
Both have 12 GB, so they fit the same models by our estimate; speed then depends on memory bandwidth and software. If you want the easiest setup and the widest tool support, NVIDIA's CUDA is still the safer pick; AMD works well in llama.cpp-based apps.
Which is cheaper in the UK, RTX 3060 12GB or Arc B580?
We didn't find a current UK listing for one of them on 2026-10-16.
Can the RTX 3060 12GB and Arc B580 run a 14B model?
RTX 3060 12GB: yes at Q4; Arc B580: yes at Q4 (our estimate, ~4k context).
Prices: lowest listed new price at UK shops (AWD-IT, Box, Laptops Direct, Novatech, Scan) for GPUs; laptop rows may include EU shops (prices exclude UK shipping/import). Stock not verified. Model fit: GGUF size ×1.1 + 1 GB (estimate). Other comparisons: RX 9060 XT 16GB vs RTX 5060 Ti 16GB · RTX 3060 12GB vs RX 9060 XT 16GB · RTX 5070 vs RX 9070 · RX 9070 vs RX 9070 XT · RX 9070 XT vs RTX 5070 Ti · RTX 5060 Ti 16GB vs RTX 5070 · Radeon AI PRO R9700 vs RTX 5090 · RTX 5070 vs RTX 5070 Ti laptop · RTX 5060 vs RTX 5070 laptop · Arc B580 vs RX 9060 XT 16GB · RX 9060 XT 16GB vs RX 9070 · RX 9070 vs RTX 5060 Ti 16GB · RTX 5070 vs RX 9070 XT · RTX 5070 Ti vs RTX 5080