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

Written by Jakub Rusinowski · Last updated July 12, 2026

Yes, comfortably — you'll have ~5.3 GB of headroom running Gemma 4 31B at Q4_K_M (18.7 GB, ~29 tok/s (est.)) with room for up to 16K context.

See what else this hardware can run →

Buy This HardwareAMD Radeon RX 7900 XTX 24GB — 24 GB VRAM · 355 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)

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AMD Radeon RX 7900 XTX 24GB
24 GB VRAM · 355 W board power
2026 prices are volatile — check the current listing.
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AMD Radeon RX 7900 XTX Specs

VRAM24 GB
Memory Bandwidth960 GB/s

Gemma 4 31B on the AMD Radeon RX 7900 XTX: VRAM by quantization

QuantVRAM neededFits 24 GB?Max contextWhole PC
F1663.7 GB✗ No
Q8_034.6 GB✗ NoBuild for this
Q6_K27.1 GB✗ No
Q5_K_M23.7 GB✓ Yes4KBuild for this
Q4_K_M20.4 GB✓ Yes16KBuild for this
Q3_K_M14.9 GB✓ Yes32K
Q2_K11.9 GB✓ Yes32K

Assumes a 4K-token context with an f16 KV cache, on an estimated architecture — this model publishes no config we can read. A longer window needs more; a quantized KV cache needs less. “Max context” is the largest window that still fits in 24 GB. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.

Context costs VRAM too. At Q4_K_M on the AMD Radeon RX 7900 XTX: 8K 21.3 GB · 32K 26.8 GB ✗ · 128K 48.5 GB ✗. Past 32K it no longer fits 24 GB — a q8_0 KV cache buys roughly half of that back, which the calculator will price for you.

No compatible GPU? Gemma 4 31B on 32 GB of system RAM, CPU only: runs comfortably.

Gemma 4 Sizes That Fit the AMD Radeon RX 7900 XTX

Gemma 4 31BQ4_K_M · 18.7 GB · ~29 tok/s (est.)
Gemma 4 26B-A4BQ4_K_M · 15.7 GB · ~114 tok/s (est.)
Gemma 4 12B (Unified)Q4_K_M · 7.2 GB · ~62 tok/s (est.)
Gemma 4 E4BQ4 (QAT) · 4.5 GB · ~86 tok/s (est.)
Gemma 4 E2BQ4 (QAT) · 2.9 GB · ~112 tok/s (est.)
Buy vs. rent Gemma 4
Buy the GPU
~$999
AMD Radeon RX 7900 XTX · 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

Will Gemma 4 run on the AMD Radeon RX 7900 XTX?

Yes, comfortably — you'll have ~5.3 GB of headroom running Gemma 4 31B at Q4_K_M (18.7 GB, ~29 tok/s (est.)) with room for up to 16K context.

Which Gemma 4 variant fits best on the AMD Radeon RX 7900 XTX?

Gemma 4 31B at Q4_K_M quantization (18.7 GB), estimated ~29 tokens/sec, up to 16K context.

Every Gemma 4 size on the AMD Radeon RX 7900 XTX

SizeVRAMVerdictSpeed
Gemma 4 31B18.7 GBRuns~29 tok/s
Gemma 4 26B-A4B15.7 GBRuns~114 tok/s
Gemma 4 12B (Unified)7.2 GBRuns~62 tok/s
Gemma 4 E4B4.5 GBRuns~86 tok/s
Gemma 4 E2B2.9 GBRuns~112 tok/s

Gemma 4 on Other GPUs

Popular Models on the AMD Radeon RX 7900 XTX

VRAM Tier

Troubleshooting

Buying Guide

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