Which local LLMs can the Intel Arc B580 run?

Assumes 32 GB of DDR5-5600 system RAM, Windows with this GPU driving the display, 8k context and an f16 KV cache.

Specs

VRAM: 12 GB
Memory bandwidth: 456.0 GB/s
FP16 compute: 27.3 TFLOPS
Launch year: 2024
Price: $290 street (as of 2026-08-09)

Verdicts at a glance

At Q4_K_M (or the closest available quant) with 8k context.

Runs great10 modelsRuns well3 modelsRuns slowly11 modelsWon't run5 models1 more model runs at a lower quant.

How to read the verdicts

Runs great: Fully on the GPU at 20 tok/s or more
Runs well: Fully on the GPU at 8–20 tok/s; MoE experts in system RAM at 20 tok/s or more; or at least 90% on the GPU at 8 tok/s or more
Runs slowly: 2–8 tok/s; CPU-only; less than 90% on the GPU; or MoE experts in system RAM below 20 tok/s
Won't run: Does not fit, or under 2 tok/s

Every model on the Intel Arc B580

Dense models split between GPU and CPU slow down sharply — the CPU side sets the pace. MoE models that keep only their experts in system RAM degrade far more gently.

Scroll sideways to see every column.

29 models sorted by verdict and speed
Model	Verdict	Speed	Quant	Memory	Runs as	Context	Notes
EXAONE 4.0 1.2B	Runs great	est. 204.9 tok/s163.9–245.8calibrated estimate ±20%	Q4_K_M	2.5 / 12.0 GB	Full GPU	up to 64k	—
HyperCLOVA X SEED 1.5B	Runs great	est. 148.2 tok/s118.6–177.8calibrated estimate ±20%	Q4_K_M	3.0 / 12.0 GB	Full GPU	up to 16k	—
DeepSeek R1 Distill Llama 8B	Runs great	est. 44.9 tok/s35.9–53.9calibrated estimate ±20%	Q4_K_M	7.2 / 12.0 GB	Full GPU	up to 16k	reasoning model
Kanana 1.5 8B	Runs great	est. 44.9 tok/s35.9–53.9calibrated estimate ±20%	Q4_K_M	7.2 / 12.0 GB	Full GPU	up to 32k	—
Llama 3.1 8B	Runs great	est. 44.9 tok/s35.9–53.9calibrated estimate ±20%	Q4_K_M	7.2 / 12.0 GB	Full GPU	up to 32k	—
Qwen3.5 9B	Runs great	est. 43.8 tok/s35.1–52.6calibrated estimate ±20%	Q4_K_M	7.3 / 12.0 GB	Full GPU	up to 64k	—
Qwen3 8B	Runs great	est. 43.1 tok/s34.5–51.8calibrated estimate ±20%	Q4_K_M	7.4 / 12.0 GB	Full GPU	up to 32k	—
Gemma 4 12B	Runs great	est. 35.1 tok/s28.1–42.2calibrated estimate ±20%	Q4_K_M	8.8 / 12.0 GB	Full GPU	up to 32k	—
Gemma 3 12B	Runs great	est. 34.3 tok/s27.5–41.2calibrated estimate ±20%	Q4_K_M	9.0 / 12.0 GB	Full GPU	up to 32k	—
Qwen3 14B	Runs great	est. 26.0 tok/s20.8–31.2calibrated estimate ±20%	Q4_K_M	11.5 / 12.0 GB	Full GPU	up to 8k	—
HyperCLOVA X SEED Think 14B	Runs well	est. 26.4 tok/s18.5–34.3theoretical estimate ±30%	Q4_K_M	11.4 / 12.0 GB	Full GPU	up to 8k	reasoning model
Phi-4	Runs well	est. 25.1 tok/s20.1–30.1calibrated estimate ±20%	Q4_K_M	11.9 / 12.0 GB	Full GPU	up to 8k	reasoning model
Qwen3.5 35B-A3B	Runs well	est. 20.4 tok/s14.3–26.5theoretical estimate ±30%	Q4_K_M	2.6 / 12.0 GB + 21.4 GB RAM	MoE experts in RAM	up to 256k	Not fully on the GPU — Runs great needs the whole model in GPU memory
Gemma 4 26B-A4B	Runs slowly	est. 28.4 tok/s19.9–36.9theoretical estimate ±30%	Q4_K_M	12.0 / 12.0 GB + 6.5 GB RAM	Partial offload	up to 128k	Less than 90% on the GPU — a GPU/CPU split is capped at Runs slowly UD-Q2_K_XL (heavy quality loss): Runs well
Kanana 1.5 15.7B-A3B	Runs slowly	est. 19.3 tok/s13.5–25.1theoretical estimate ±30%	Q4_K_M	3.0 / 12.0 GB + 9.6 GB RAM	MoE experts in RAM	up to 32k	Experts run from system RAM — Runs well needs 20 tok/s or more on this path Try IQ4_XS: Runs great
Qwen3 30B-A3B (2507)	Runs slowly	est. 19.2 tok/s13.4–24.9theoretical estimate ±30%	Q4_K_M	2.9 / 12.0 GB + 17.7 GB RAM	MoE experts in RAM	up to 64k	Experts run from system RAM — Runs well needs 20 tok/s or more on this path Try IQ4_XS: Runs well
gpt-oss-20b	Runs slowly	est. 18.5 tok/s12.9–24.0theoretical estimate ±30%	MXFP4	2.0 / 12.0 GB + 11.5 GB RAM	MoE experts in RAM	up to 128k	Experts run from system RAM — Runs well needs 30 tok/s or more on this path reasoning model
Mistral Small 3.2 24B	Runs slowly	est. 6.4 tok/s5.1–7.6calibrated estimate ±20%	Q4_K_M	12.0 / 12.0 GB + 4.8 GB RAM	Partial offload	up to 32k	Q2_K (heavy quality loss): Runs great
Gemma 3 27B	Runs slowly	est. 5.3 tok/s4.3–6.4calibrated estimate ±20%	Q4_K_M	12.0 / 12.0 GB + 6.4 GB RAM	Partial offload	up to 64k	Q2_K (heavy quality loss): Runs well
Qwen3.5 27B	Runs slowly	est. 5.1 tok/s4.1–6.1calibrated estimate ±20%	Q4_K_M	12.0 / 12.0 GB + 6.8 GB RAM	Partial offload	up to 64k	—
EXAONE 4.0 32B	Runs slowly	est. 4.0 tok/s3.2–4.9calibrated estimate ±20%	Q4_K_M	12.0 / 12.0 GB + 9.1 GB RAM	Partial offload	up to 32k	reasoning model
EXAONE 4.5 33B	Runs slowly	est. 3.8 tok/s3.0–4.6calibrated estimate ±20%	Q4_K_M	12.0 / 12.0 GB + 9.8 GB RAM	Partial offload	up to 32k	reasoning model
Qwen3 32B	Runs slowly	est. 3.2 tok/s2.6–3.9calibrated estimate ±20%	Q4_K_M	12.0 / 12.0 GB + 11.1 GB RAM	Partial offload	up to 16k	—
DeepSeek R1 Distill Qwen 32B	Runs slowly	est. 3.2 tok/s2.6–3.8calibrated estimate ±20%	Q4_K_M	12.0 / 12.0 GB + 11.2 GB RAM	Partial offload	up to 8k	reasoning model
Llama 3.3 70B	Won't runTry Q2_K (heavy quality loss): Runs slowly	est. 2.1 tok/s1.7–2.5calibrated estimate ±20%	Q2_K	12.0 / 12.0 GB + 18.2 GB RAM	Partial offload	up to 8k	—
gpt-oss-120b	Won't run	—	MXFP4	needs 64.3 GB	—	—	Needs about 64.3 GB; 11.4 GB of VRAM and 28.0 GB of RAM are free With 96 GB RAM: Runs slowly reasoning model
Qwen3.5 122B-A10B	Won't run	—	Q4_K_M	needs 79.0 GB	—	—	Needs about 79.0 GB; 11.4 GB of VRAM and 28.0 GB of RAM are free With 96 GB RAM: Runs slowly
Solar Open 100B	Won't run	—	Q4_K_M	needs 64.4 GB	—	—	Needs about 64.4 GB; 11.4 GB of VRAM and 28.0 GB of RAM are free With 64 GB RAM: Runs slowly
Solar Open 2 250B	Won't run	—	IQ4_XS	needs 137.2 GB	—	—	Needs about 137.2 GB; 11.4 GB of VRAM and 28.0 GB of RAM are free

Reasoning models spend extra tokens thinking, so their speed thresholds are 1.5× stricter (30 / 12 / 3 tok/s).

Measured results on the Intel Arc B580

Public benchmarks we calibrate against. Their conditions (context, backend, flags) can differ from the estimates above.

Measured results on the Intel Arc B580
Model	Quant	Backend	Context	Prompt (tok/s)	Generation (tok/s)	Flags	Source	Measured
llama-2-7b	Q4_0	llama.cpp	512	621.0	70.1	Vulkan	github.com	2024-12-15

Frequently asked questions

What is the largest model that runs entirely on the Intel Arc B580?

Kanana 1.5 15.7B-A3B at IQ4_XS (a 8.71 GB file) fits entirely in 12 GB with 8k context, at est. 98.3 tok/s (68.8–127.7, theoretical estimate ±30%).

How many local LLMs run well on the Intel Arc B580?

At Q4_K_M with 8k context, out of 29 tracked models: 10 run great, 3 run well, 11 run slowly and 5 won't run.

Can the Intel Arc B580 run a 70B model like Llama 3.3 70B?

Runs slowly — Partial offload, Q2_K (heavy quality loss): est. 2.1 tok/s (1.7–2.5, calibrated estimate ±20%).

Speeds are estimates from memory bandwidth, calibrated against public benchmarks, and each one comes with an error band and a confidence label. Real results vary with drivers, backend, context length and thermals.