Phi 4 Mini 4B needs ~4.6 GB VRAM. RTX 3050 Ti Laptop 4GB has 4.0 GB. With Q2_K quantization, expect ~49 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
1.5 GB over capacity — needs offload or smaller quantization
Fit status
Too heavy
Decode
25.3 tok/s
TTFT
7662 ms
Safe context
4K
Memory
5.5 GB / 4.0 GB
Offload
30%
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.
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.
Buy headroom, not only minimum fit
A slightly larger memory tier gives you safer context growth and makes the recommendation more future-proof.
Increase host RAM if you keep offloading
This setup may need roughly 0.2 GB of extra host RAM just for the offloaded portion, before OS and other tools.
| Workload | Grade | Fit | Decode | TTFT | Context |
|---|---|---|---|---|---|
| Chat | B | Very compromised (needs ~0.4 GB host RAM) | 34.1 tok/s | 3095 ms | 4K |
| Coding | F | Too heavy | 25.3 tok/s | 7662 ms | 4K |
| Agentic Coding | F | Too heavy | 15.4 tok/s | 18314 ms | 4K |
| Reasoning | F | Too heavy | 25.3 tok/s | 9055 ms | 4K |
| RAG | F | Too heavy | 15.4 tok/s | 22893 ms | 4K |
How Phi 4 Mini 4B (4B params) fits at each quantization level on RTX 3050 Ti Laptop 4GB (4.0 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_KBest for your GPU | 2 | 1.6 GB | Low | A76 |
Q3_K_S | 3 | 2.0 GB | Low | F0 |
NVFP4 | 4 | 2.2 GB | Medium | F0 |
Q4_K_M | 4 | 2.4 GB | Medium | F0 |
Q5_K_M | 5 | 2.9 GB | High | F0 |
Q6_K | 6 | 3.3 GB | High | F0 |
Q8_0 | 8 | 4.3 GB | Very High | F0 |
F16 | 16 | 8.2 GB | Maximum | F0 |
Copy-paste commands to run Phi 4 Mini 4B on your machine.
Run
ollama run phi4-miniアップグレードオプション
GTX 1660 Super 6GBコスパ重視Makes 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.
〜$229 MSRP
RTX 3050 8GBコスパ最良Makes 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.
〜$249 MSRP
GTX 1060 6GBNVIDIAアップグレードMakes 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.
〜$249 MSRP
Yes, RTX 3050 Ti Laptop 4GB can run Phi 4 Mini 4B at Q2_K quantization (Very compromised (needs ~0.2 GB host RAM)). The recommended Q4_K_M requires 5.5 GB which exceeds available memory, but at Q2_K it needs only 4.6 GB. Expected decode speed: 48.5 tok/s.
Phi 4 Mini 4B (4B parameters) requires approximately 5.5 GB at Q4_K_M quantization. On RTX 3050 Ti Laptop 4GB, it fits at Q2_K using 4.6 GB.
The recommended quantization is Q4_K_M, but on RTX 3050 Ti Laptop 4GB the best fitting quantization is Q2_K, which uses 4.6 GB.
On RTX 3050 Ti Laptop 4GB, Phi 4 Mini 4B achieves approximately 48.5 tokens per second decode speed with a time-to-first-token of 3994ms using Q2_K quantization.
For coding workloads, Phi 4 Mini 4B on RTX 3050 Ti Laptop 4GB receives a F grade with 25.3 tok/s and 4K context.
On RTX 3050 Ti Laptop 4GB, Phi 4 Mini 4B can safely use up to 9K tokens of context at Q2_K quantization. The model's official context limit is 128K, 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.
Paste this snippet into any page to show a live fit card.
<iframe src="https://willitrunai.com/embed/phi-4-mini-4b-on-rtx-3050-ti-laptop-4gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>
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