Can Phi 4 Mini 4B run on Intel Arc B580 12GB?

YES — Runs Great

A72Great

Estimated from fit model

Phi 4 Mini 4B needs ~6.0 GB VRAM. Intel Arc B580 12GB has 12.0 GB. With Q4_K_M quantization, expect ~56 tok/s.

Runtime: llama.cppCapacity: RoomyBandwidth: MediumStack: StandardBottleneck: Balanced

Operating mode

Choose the run profile you care about

Interactive favors responsiveness, while light API and scale-out lean harder on serving readiness. The fit stays the same, but the recommendation lens changes.

Current mode

Balanced

Balanced for general local use. Keeps the ranking neutral across personal and serving workflows.

Capabilities:

Select quantization to explore

Q4_K_M (Medium quality) — 6.0 GB, 56.0 tok/s, Runs well

6.0 GB required12.0 GB available

50% VRAM used

Fit status

Runs well

Decode

56.0 tok/s

TTFT

3457 ms

Safe context

81K

Memory

6.0 GB / 12.0 GB

Memory breakdown

Weights2.4 GB

KV Cache1.5 GB

Runtime0.9 GB

Headroom1.2 GB

See how fast it feels

See how fast it feelsPhi 4 Mini 4B on Intel Arc B580 12GB
1st promptCold start — includes initialization
>Solve: If a train travels at 60 mph for 2.5 hours, how far does it go?
Let me work through this step by step.

Given information:
  - Speed = 60 mph (miles per hour)
  - Time  = 2.5 hours

Formula: Distance = Speed x Time

Calculation:
  Distance = 60 mph x 2.5 h
           = 150 miles

The train travels 150 miles.

Double-check: at 60 mph the train covers 60 miles each hour. In half an hour it covers 30 miles. So in 2.5 hours: 60 + 60 + 30 = 150 miles. Confirmed.
2nd promptWarm — model ready, no init overhead
>What if the train stops for 20 minutes halfway?
The stop doesn't change the total distance covered while moving, but it affects total trip time.

Breakdown:
  - First half: 1.25 hours at 60 mph = 75 miles
  - Stop: 20 minutes (no distance)
  - Second half: 1.25 hours at 60 mph = 75 miles

Total distance: 150 miles (same)
Total time: 2.5 h + 0.33 h = 2.83 hours
Average speed: 150 / 2.83 = 53 mph

The distance stays the same but average speed drops to 53 mph because of the stop.
Estimated: 56.0 tok/s decode · 3.5s TTFT (warm) · 140 tok/s prefill

What limits this setup

The raw memory story may look fine, but the software ecosystem is still a constraint here.

Runtime ecosystem is narrower than CUDA

Intel GPUs can look attractive on memory per dollar, but local AI tooling, kernels, and model coverage are still broader and easier on CUDA today.

Best improvement path

Prefer CUDA if you want the path of least resistance

If your goal is maximum runtime coverage, easier troubleshooting, and better support for new local AI releases, CUDA is usually still the safer upgrade path.

Performance by workload

Workload	Grade	Fit	Decode	TTFT	Context
Chat	A	Runs well	56.0 tok/s	1886 ms	81K
Coding	A	Runs well	56.0 tok/s	3457 ms	81K
Agentic Coding	A	Runs well	56.0 tok/s	5029 ms	81K
Reasoning	A	Runs well	56.0 tok/s	4086 ms	81K
RAG	A	Runs well	56.0 tok/s	6286 ms	81K

Quantization options

How Phi 4 Mini 4B (4B params) fits at each quantization level on Intel Arc B580 12GB (12.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	1.6 GB	Low	B68
Q3_K_S	3	2.0 GB	Low	B69
NVFP4	4	2.2 GB	Medium	B69
Q4_K_M	4	2.4 GB	Medium	B69
Q5_K_M	5	2.9 GB	High	B70
Q6_K	6	3.3 GB	High	A70
Q8_0	8	4.3 GB	Very High	A72
F16Best for your GPU	16	8.2 GB	Maximum	A72

Get started

Copy-paste commands to run Phi 4 Mini 4B on your machine.

Run

ollama run phi4-mini

Your hardware

More models your Intel Arc B580 12GB can run

Model	Params	Grade	Decode
Qwen 3.5 9B	9B	S	42.9 tok/s
Qwen 3 14B	14B	A	17.8 tok/s
Qwen 3 8B	8B	S	48.2 tok/s
Phi-4-reasoning-plus 14B	14.7B	A	14.4 tok/s
Nemotron Nano 8B	8B	S	48.2 tok/s

Frequently asked questions

Can Intel Arc B580 12GB run Phi 4 Mini 4B?

Yes, Intel Arc B580 12GB can run Phi 4 Mini 4B with a A grade (Runs well). Expected decode speed: 56.0 tok/s.

How much VRAM does Phi 4 Mini 4B need?

Phi 4 Mini 4B (4B parameters) requires approximately 6.0 GB of memory with Q4_K_M quantization.

What is the best quantization for Phi 4 Mini 4B?

The recommended quantization for Phi 4 Mini 4B is Q4_K_M, which balances quality and memory efficiency.

What speed will Phi 4 Mini 4B run at on Intel Arc B580 12GB?

On Intel Arc B580 12GB, Phi 4 Mini 4B achieves approximately 56.0 tokens per second decode speed with a time-to-first-token of 3457ms using Q4_K_M quantization.

Can Intel Arc B580 12GB run Phi 4 Mini 4B for coding?

For coding workloads, Phi 4 Mini 4B on Intel Arc B580 12GB receives a A grade with 56.0 tok/s and 81K context.

What context window can Phi 4 Mini 4B use on Intel Arc B580 12GB?

On Intel Arc B580 12GB, Phi 4 Mini 4B can safely use up to 81K tokens of context. The model's official context limit is 128K, but available memory constrains the safe maximum.

What should I upgrade first if Phi 4 Mini 4B feels slow on Intel Arc B580 12GB?

Prefer CUDA if you want the path of least resistance. If your goal is maximum runtime coverage, easier troubleshooting, and better support for new local AI releases, CUDA is usually still the safer upgrade path.

Would CUDA be a better path than Intel Arc B580 12GB for Phi 4 Mini 4B?

Often yes, if your goal is the easiest setup and the widest runtime support. Intel can offer attractive memory capacity, but CUDA still tends to win on tooling maturity, guides, kernels, and model coverage for local AI.

See all results for Intel Arc B580 12GB See all hardware for Phi 4 Mini 4B

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