Can I Run Phi-4 Family on AMD Radeon RX 7800 XT?

Autor: Jakub Rusinowski · Ostatnia aktualizacja: 12 lipca 2026

Yes, comfortably — you'll have ~7.5 GB of headroom running Phi-4 (14B) at Q4_K_M (8.4525 GB, ~38 tok/s (est.)) with room for up to 16K context.

Buy This HardwareAMD Radeon RX 7800 XT 16GB — 16 GB VRAM · 263 W board powerDeploy in the Cloud NowRTX 4090 on RunPod — from $0.34/hr · rate checked 2026-07

or compare on Vast.ai from $0.35/hr (typical low · varies)

As an Amazon Associate we earn from qualifying purchases. Cloud GPU links are referral links — we may earn a commission at no extra cost to you.

Ujawnienie afiliacyjne: Niektóre odnośniki na tej stronie to linki afiliacyjne — jeśli dokonasz zakupu za ich pośrednictwem, LLM Configurator może otrzymać prowizję bez dodatkowych kosztów dla Ciebie. Jako uczestnik programu Amazon Associates, LLM Configurator zarabia na kwalifikujących się zakupach.

AMD Radeon RX 7800 XT 16GB
16 GB VRAM · 263 W board power
Ceny w 2026 są niestabilne — sprawdź aktualną ofertę.
Sprawdź cenę na Amazon

AMD Radeon RX 7800 XT Specs

VRAM16 GB
Memory Bandwidth624 GB/s

Phi-4 (14B) on the AMD Radeon RX 7800 XT: 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 AMD Radeon RX 7800 XT

Phi-4 (14B)Q4_K_M · 8.4525 GB · ~38 tok/s (est.)
Buy vs. rent Phi-4 Family
Buy the GPU
~$499
AMD Radeon RX 7800 XT · MSRP
Rent by the hour
from $0.34/hr
RTX 4090 (24 GB) class

At 2 hrs/day, buying (~$499) beats renting at $0.34/hr after about 2.0 years.

Affiliate links — we may earn a commission if you sign up, at no extra cost to you.

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 AMD Radeon RX 7800 XT?

Yes, comfortably — you'll have ~7.5 GB of headroom running Phi-4 (14B) at Q4_K_M (8.4525 GB, ~38 tok/s (est.)) with room for up to 16K context.

What's the best Phi-4 Family size for the AMD Radeon RX 7800 XT?

Phi-4 (14B) at Q4_K_M quantization (8.4525 GB), estimated ~38 tokens/sec, up to 16K context.

Phi-4 Family on Other GPUs

Popular Models on the AMD Radeon RX 7800 XT

VRAM Tier

Troubleshooting

Buying Guide

← Can I Run It? | Phi-4 Family Model Page | AMD Radeon RX 7800 XT GPU Page | Check Your Hardware