Phi 4 reasoning vision 15B needs ~9.3 GB VRAM. Intel Arc A580 8GB has 8.0 GB. With Q2_K quantization, expect ~20 tok/s.
Operating mode
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.
Select quantization to explore
4.6 GB over capacity — needs offload or smaller quantization
Fit status
Too heavy
Decode
7.9 tok/s
TTFT
24527 ms
Safe context
4K
Memory
12.6 GB / 8.0 GB
Offload
40%
It fits through host-memory offload, and offload is the main reason performance drops.
CPU or host-memory offload is active
About 10% of the working set spills out of accelerator memory, which usually hurts latency and sustained decode throughput.
Very little memory headroom
You can run the model, but there is not much room left for longer context, bigger batches, extra apps, or future model updates.
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.
Remove offload with more accelerator memory
Prioritize a GPU or unified-memory tier that fits the whole model natively. Removing offload usually helps more than small compute gains.
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.
Buy headroom, not only minimum fit
A slightly larger memory tier gives you safer context growth and makes the recommendation more future-proof.
| Workload | Grade | Fit | Decode | TTFT | Context |
|---|---|---|---|---|---|
| Chat | F | Too heavy | 9.2 tok/s | 11491 ms | 4K |
| Coding | F | Too heavy | 7.9 tok/s | 24527 ms | 4K |
| Agentic Coding | F | Too heavy | 6.0 tok/s | 46956 ms | 4K |
| Reasoning | F | Too heavy | 7.9 tok/s | 28986 ms | 4K |
| RAG | F | Too heavy | 6.0 tok/s | 58695 ms | 4K |
How Phi 4 reasoning vision 15B (15B params) fits at each quantization level on Intel Arc A580 8GB (8.0 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 5.9 GB | Low | F0 |
Q3_K_S | 3 | 7.4 GB | Low | F0 |
NVFP4 | 4 | 8.4 GB | Medium | F0 |
Q4_K_M | 4 | 9.2 GB | Medium | F0 |
Q5_K_M | 5 | 10.8 GB | High | F0 |
Q6_K | 6 | 12.3 GB | High | F0 |
Q8_0 | 8 | 16.1 GB | Very High | F0 |
F16 | 16 | 30.7 GB | Maximum | F0 |
Copy-paste commands to run Phi 4 reasoning vision 15B on your machine.
Run
lms load hf-jamesburton--phi-4-reasoning-vision-15b-gguf && lms server startOpções de upgrade
Intel Arc B580 12GBMelhor custo-benefícioMakes the model fit on the accelerator instead of staying completely out of reach.
Raises estimated decode speed by about 96%.
~$249 MSRP
Intel Arc A770 16GBOpção econômicaMakes the model fit on the accelerator instead of staying completely out of reach.
Removes host-memory offload, which is usually the single biggest latency and throughput win.
~$349 MSRP
Intel Arc Pro B50 16GBUpgrade IntelMakes the model fit on the accelerator instead of staying completely out of reach.
Removes host-memory offload, which is usually the single biggest latency and throughput win.
~$399 MSRP
RTX A4500 20GBMaior saltoMakes the model fit on the accelerator instead of staying completely out of reach.
Removes host-memory offload, which is usually the single biggest latency and throughput win.
~$2,000 MSRP
Yes, Intel Arc A580 8GB can run Phi 4 reasoning vision 15B at Q2_K quantization (Very compromised (needs ~0.8 GB host RAM)). The recommended Q4_K_M requires 12.6 GB which exceeds available memory, but at Q2_K it needs only 9.3 GB. Expected decode speed: 19.9 tok/s.
Phi 4 reasoning vision 15B (15B parameters) requires approximately 12.6 GB at Q4_K_M quantization. On Intel Arc A580 8GB, it fits at Q2_K using 9.3 GB.
The recommended quantization is Q4_K_M, but on Intel Arc A580 8GB the best fitting quantization is Q2_K, which uses 9.3 GB.
On Intel Arc A580 8GB, Phi 4 reasoning vision 15B achieves approximately 19.9 tokens per second decode speed with a time-to-first-token of 9739ms using Q2_K quantization.
For coding workloads, Phi 4 reasoning vision 15B on Intel Arc A580 8GB receives a F grade with 7.9 tok/s and 4K context.
On Intel Arc A580 8GB, Phi 4 reasoning vision 15B can safely use up to 4K tokens of context at Q2_K quantization. The model's official context limit is —, but available memory constrains the safe maximum.
Remove offload with more accelerator memory. Prioritize a GPU or unified-memory tier that fits the whole model natively. Removing offload usually helps more than small compute gains.
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.
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