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URL: https://willitrunai.com/can-run/phi-4-14b-on-arc-pro-b50-16gb

⇱ Phi-4 14B on Intel Arc Pro B50 16GB? TIGHT FIT


Can Phi-4 14B run on Intel Arc Pro B50 16GB?

YES — Tight Fit

A80Great
Estimated from fit model

Phi-4 14B needs ~14.1 GB VRAM. Intel Arc Pro B50 16GB has 16.0 GB. With Q4_K_M quantization, expect ~15 tok/s.

Runtime: llama.cppCapacity: TightBandwidth: Very lowStack: StandardBottleneck: Memory bandwidth
Share:

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) — 14.1 GB, 15.2 tok/s, Tight fit
14.1 GB required16.0 GB available
88% VRAM used

Fit status

Tight fit

Decode

15.2 tok/s

TTFT

12715 ms

Safe context

16K

Memory

14.1 GB / 16.0 GB

Memory breakdown

Weights8.5 GB
KV Cache3.1 GB
Runtime0.9 GB
Headroom1.6 GB

See how fast it feels

See how fast it feelsPhi-4 14B on Intel Arc Pro B50 16GB
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: 15.2 tok/s decode · 12.7s TTFT (warm) · 38 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

WorkloadGradeFitDecodeTTFTContext
ChatARuns well15.2 tok/s6935 ms16K
CodingATight fit15.2 tok/s12715 ms16K
Agentic CodingBRuns with offload (needs ~0.6 GB host RAM)10.1 tok/s27842 ms16K
ReasoningATight fit15.2 tok/s15027 ms16K
RAGBRuns with offload (needs ~0.6 GB host RAM)10.1 tok/s34803 ms16K

Quantization options

How Phi-4 14B (14B params) fits at each quantization level on Intel Arc Pro B50 16GB (16.0 GB usable).

QuantBitsVRAMQualityFit
Q2_K
2
5.5 GB
LowA81
Q3_K_S
3
6.9 GB
LowA82
NVFP4
4
7.8 GB
MediumA83
Q4_K_M
4
8.5 GB
MediumA83
Q5_K_M
5
10.1 GB
HighA83
Q6_KBest for your GPU
6
11.5 GB
HighA82
Q8_0
8
15.0 GB
Very HighF0
F16
16
28.7 GB
MaximumF0

Get started

Copy-paste commands to run Phi-4 14B on your machine.

Run

ollama run phi4

Your hardware

More models your Intel Arc Pro B50 16GB can run

ModelParamsGradeDecodeCapabilities
👁 Microsoft
Phi-4-reasoning-plus 14B
14.7BS14.5 tok/s
👁 OpenAI
GPT-OSS 20B
21BA14.4 tok/s
👁 Mistral
Codestral 2 25.08
22BB5.3 tok/s
👁 Tsinghua/Zhipu
CogVLM2 19B
19BA8 tok/s

Frequently asked questions

See all results for Intel Arc Pro B50 16GBSee all hardware for Phi-4 14B