Fits comfortably

Running Phi-3.5 Mini Instruct on NVIDIA GeForce RTX 3080 16GB (Mobile)

NVIDIA GeForce RTX 3080 16GB (Mobile) runs Phi-3.5 Mini Instruct comfortably at Q8_0 with 11 GB of headroom for context.

By Eruo Fredoline·Latest benchmark evidence Jun 2, 2026

Model size

Recommended quant

Q8_0
Highest quality that fits

Quick start with Ollama

1. Install
ollama pull phi3.5:3.8b
2. Run
ollama run phi3.5:3.8b

Default quant in Ollama is Q4_K_M. To use a different quant, append it: phi3.5:3.8b-q5_K_M.

Variants and what fits

QuantizationFile sizeVRAM requiredFits on NVIDIA GeForce RTX 3080 16GB (Mobile)?
Q4_K_M2.4 GB4 GB
Yes
Q8_04.1 GB5 GB
Yes

Real benchmarks

ToolQuantContexttok/sVRAM usedDateEvidenceExport
Q4_K_M4,096155.4 tok/sJun 2, 2026Measured here
operator: fred-oline

Frequently asked

Can NVIDIA GeForce RTX 3080 16GB (Mobile) run Phi-3.5 Mini Instruct?

NVIDIA GeForce RTX 3080 16GB (Mobile) runs Phi-3.5 Mini Instruct comfortably at Q8_0 with 11 GB of headroom for context.

What quantization should I use?

Q8_0 is the highest-quality variant of Phi-3.5 Mini Instruct that fits in 16 GB VRAM. Lower-bit quants will be smaller but lose some quality.

How fast will it be?

Measured at 155.4 tok/s on this combination in our testing.

See also: Phi-3.5 Mini Instruct, NVIDIA GeForce RTX 3080 16GB (Mobile), all benchmarks.

Reviewed by RunLocalAI Editorial. See our editorial policy.