Can I Run Phi-4 Family on NVIDIA GeForce RTX 4080 Super?

Written by Jakub Rusinowski · Last updated January 6, 2025

Yes, comfortably — you'll have ~6.8 GB of headroom running Phi-4 (14B) at Q4_K_M (9.2 GB, ~80 tok/s (est.)) with room for up to 16K context.

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Check price on Amazon — NVIDIA GeForce RTX 4080 Super 16GB

NVIDIA GeForce RTX 4080 Super Specs

VRAM16 GB
Memory Bandwidth736 GB/s

Phi-4 (14B) on the NVIDIA GeForce RTX 4080 Super: VRAM by quantization

QuantVRAM neededFits 16 GB?Max context
F1629.6 GB✗ No
Q8_016.5 GB✗ No
Q6_K13.1 GB✓ Yes16K
Q5_K_M11.6 GB✓ Yes16K
Q4_K_M10.1 GB✓ Yes16K
Q3_K_M7.6 GB✓ Yes16K
Q2_K6.2 GB✓ Yes16K

VRAM needed assumes a 4K-token context with an f16 KV cache; “Max context” is the largest window that still fits in 16 GB. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.

Phi-4 Family Sizes That Fit the NVIDIA GeForce RTX 4080 Super

Phi-4 (14B)Q4_K_M · 9.2 GB · ~80 tok/s (est.)
Buy vs. rent Phi-4 Family
Buy the GPU
~$999
NVIDIA GeForce RTX 4080 Super · MSRP
Rent by the hour
from $0.34/hr
RTX 4090 (24 GB) class

At 2 hrs/day, buying (~$999) beats renting at $0.34/hr after about 4.1 years.

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RunPod $0.34/hr
Rent on RunPod →
Vast.ai $0.35/hr · typical low · varies
Rent on Vast.ai →

Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.

FAQ

Can I run Phi-4 Family on the NVIDIA GeForce RTX 4080 Super?

Yes, comfortably — you'll have ~6.8 GB of headroom running Phi-4 (14B) at Q4_K_M (9.2 GB, ~80 tok/s (est.)) with room for up to 16K context.

What's the best Phi-4 Family size for the NVIDIA GeForce RTX 4080 Super?

Phi-4 (14B) at Q4_K_M quantization (9.2 GB), estimated ~80 tokens/sec, up to 16K context.

Phi-4 Family on Other GPUs

Popular Models on the NVIDIA GeForce RTX 4080 Super

VRAM Tier

Troubleshooting

Buying Guide

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