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Can the AMD Radeon RX 7900 XT run Gemma 4 26B-A4B?

Radeon RX 7900 XT × Gemma 4 26B-A4B8K context
YesRuns fully on the GPU
Memory at Q5_K_M19.2 GB of 20 GB
Weights 18.4 GBKV cache 0.3 GBRuntime 0.6 GB
QuantQ5_K_MVery good
Speed~178tokens per second
Max context79Ktokens that fit at Q5_K_M
  1. FP16
  2. Q8_0
  3. Q6_K
  4. Q5_K_M
  5. Q4_K_M
  6. Q3_K_M
  7. Q2_K

Yes. The AMD Radeon RX 7900 XT can run Gemma 4 26B-A4B fully in VRAM at Q5_K_M (very good), using about 19.2 GB of the 20 GB available, at roughly 178 tokens/second.

Try other context lengths

Run it with Ollama

With Ollama installed, one command downloads and starts Gemma 4 26B-A4B:

ollama run gemma4:26b

Ollama's default download is Q4_K_M (about 16.5 GB here). You have room for Q5_K_M, which is very good: pick that GGUF in LM Studio or from Hugging Face.

New to this? Step-by-step setup for the Radeon RX 7900 XT

Run it in the cloud

No AMD Radeon RX 7900 XT? Run Gemma 4 26B-A4B in the cloud.

Rent a cloud GPU by the hour. No upfront cost, stop any time.

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Memory needed by quantization

At 8,192 tokens of context. The black line marks the 20 GB the AMD Radeon RX 7900 XT can use.

QuantQualityMemoryFits?Speed
FP16Full quality52.5 GBToo big—
Q8_0Near-lossless28.3 GBToo big—
Q6_KExcellent22 GBToo big—
Q5_K_MVery good19.2 GBFits~178 tok/s
Q4_K_MGood, most popular16.5 GBFits~208 tok/s
Q3_K_MNoticeably degraded13.5 GBFits~258 tok/s
Q2_KHeavily degraded10.6 GBFits~337 tok/s

Measured speed from real Radeon RX 7900 XT owners

Tokens per second that people measured on their own AMD Radeon RX 7900 XT, next to our estimate.

No one has measured Gemma 4 26B-A4B on the AMD Radeon RX 7900 XT yet. The speeds above are estimates. Run the benchmark and yours becomes the first real number on this page.

Have a Radeon RX 7900 XT? Add your real speed

One command times Gemma 4 26B-A4B in your own Ollama, shows you exactly what it would send, and asks before sending anything. No sign-up, no personal data.

macOS and Linux

curl -fsSL https://gpufit.dev/bench.sh | sh -s -- gemma4:26b

Windows (PowerShell)

$env:GPUFIT_MODEL="gemma4:26b"; irm https://gpufit.dev/bench.ps1 | iex

How the benchmark works

GPUs that run Gemma 4 26B-A4B comfortably

Models that run well on the AMD Radeon RX 7900 XT

Frequently asked questions

Can AMD Radeon RX 7900 XT run Gemma 4 26B-A4B?

Yes. The AMD Radeon RX 7900 XT can run Gemma 4 26B-A4B fully in VRAM at Q5_K_M (very good), using about 19.2 GB of the 20 GB available, at roughly 178 tokens/second.

How much VRAM does Gemma 4 26B-A4B need?

About 16.5 GB at Q4_K_M with 8,192 tokens of context, and about 52.5 GB at full FP16 precision.

How fast is Gemma 4 26B-A4B on the AMD Radeon RX 7900 XT?

Roughly 178 tokens per second at Q5_K_M, estimated from the AMD Radeon RX 7900 XT's 800 GB/s memory bandwidth.