MicrosoftPhi-3 Medium 14B Instruct on NVIDIA RTX 4080 Laptop (120-150W)
Yes — RTX 4080 Laptop (120-150W) handles Phi-3 Medium 14B Instruct well at Q3_K_M — 25 tok/s. Solid daily-driver performance on 12 GB VRAM.
Model Size
14B
Device VRAM
12 GB
Bandwidth
384 GB/s
Quantization
Q3_K_M
Performance by Quantization
OwnRig currently has one published compatibility entry for Phi-3 Medium 14B Instruct on NVIDIA RTX 4080 Laptop (120-150W) at Q3_K_M. This is the best supported pairing we can stand behind today.
| Quantization | Speed | TTFT | Fits in VRAM | Rating | Confidence |
|---|---|---|---|---|---|
| Q3_K_M | 25 tok/s | 257ms | ✓ Yes | Good | estimated |
Notes
Q3_K_M
Sustained post-thermal-throttle performance. TDP-capped laptop variant.
About Phi-3 Medium 14B Instruct
Phi-3 Medium 14B Instruct (14B) is a chat, coding, reasoning, multi-purpose model. 14B model with capable reasoning and coding performance. Fits comfortably on 16 GB GPUs at Q4 and excels at structured output tasks. MIT license makes it attractive for commercial use.
View all Phi-3 Medium 14B Instruct hardware options →About NVIDIA RTX 4080 Laptop (120-150W)
NVIDIA RTX 4080 Laptop (120-150W) has 12 GB at 384 GB/s. Street price: $0.
See all models NVIDIA RTX 4080 Laptop (120-150W) can run →Estimate method: Community laptop benchmarks and thermal throttle reports. Reference hardware source: reddit.com (2026-03-14)
Performance varies by driver version, inference engine, quantization method, context length, and system configuration. Figures shown are estimates based on community benchmarks and may not reflect your exact setup. Product names are trademarks of their respective owners. OwnRig is independent and not affiliated with any hardware or AI model provider.