Can I Run Gemma 4 on AMD Radeon RX 7900 XT?

Name: LLM Configurator — GPU VRAM Checker
Author: LLM Configurator

Written by Jakub Rusinowski · Last updated June 3, 2026

Yes, comfortably — you'll have ~4 GB of headroom running Gemma 4 26B-A4B at Q4_K_M (16 GB, ~325 tok/s (est.)).

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Check price on Amazon — AMD Radeon RX 7900 XT 20GB

AMD Radeon RX 7900 XT Specs

VRAM	20 GB
Memory Bandwidth	800 GB/s

Gemma 4 26B-A4B on the AMD Radeon RX 7900 XT: VRAM by quantization

Quant	VRAM needed	Fits 20 GB?	Max context
F16	61.1 GB	✗ No	—
Q8_0	36.7 GB	✗ No	—
Q6_K	30.4 GB	✗ No	—
Q5_K_M	27.5 GB	✗ No	—
Q4_K_M	24.8 GB	✗ No	—
Q3_K_M	20.2 GB	✗ No	—
Q2_K	17.7 GB	✓ Yes	4K

VRAM needed assumes a 4K-token context with an f16 KV cache; “Max context” is the largest window that still fits in 20 GB. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.

Gemma 4 Sizes That Fit the AMD Radeon RX 7900 XT

Gemma 4 26B-A4B	Q4_K_M · 16 GB · ~325 tok/s (est.)
Gemma 4 12B (Unified)	Q4_K_M · 10 GB · ~80 tok/s (est.)
Gemma 4 E4B	Q4 (QAT) · 5.5 GB · ~145 tok/s (est.)
Gemma 4 E2B	Q4 (QAT) · 5 GB · ~160 tok/s (est.)

Buy vs. rent Gemma 4

Buy the GPU

~$899

AMD Radeon RX 7900 XT · MSRP

Rent by the hour

from $0.34/hr

RTX 4090 (24 GB) class

At 2 hrs/day, buying (~$899) beats renting at $0.34/hr after about 3.7 years.

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