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Can the AMD Radeon RX 7900 XTX run Gemma 3 4B?

Radeon RX 7900 XTX × Gemma 3 4B8K context
YesRuns fully on the GPU
Memory at FP169.5 GB of 24 GB
Weights 8.6 GBKV cache 0.3 GBRuntime 0.6 GB
QuantFP16Full quality
Speed~67tokens per second
Max context128Kthe model's full window
  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 XTX can run Gemma 3 4B fully in VRAM at FP16 (full quality), using about 9.5 GB of the 24 GB available, at roughly 67 tokens/second.

Try other context lengths

Run it with Ollama

With Ollama installed, one command downloads and starts Gemma 3 4B:

ollama run gemma3:4b

Ollama's default download is Q4_K_M (about 3.5 GB here). You have room for FP16, which is full quality: pick that GGUF in LM Studio or from Hugging Face.

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

Run it in the cloud

No AMD Radeon RX 7900 XTX? Run Gemma 3 4B in the cloud.

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

Rent a GPU on RunPodRent a GPU on Vast.ai

Memory needed by quantization

At 8,192 tokens of context. The black line marks the 24 GB the AMD Radeon RX 7900 XTX can use.

QuantQualityMemoryFits?Speed
FP16Full quality9.5 GBFits~67 tok/s
Q8_0Near-lossless5.5 GBFits~126 tok/s
Q6_KExcellent4.4 GBFits~163 tok/s
Q5_K_MVery good3.9 GBFits~188 tok/s
Q4_K_MGood, most popular3.5 GBFits~221 tok/s
Q3_K_MNoticeably degraded3 GBFits~274 tok/s
Q2_KHeavily degraded2.5 GBFits~357 tok/s

Measured speed from real Radeon RX 7900 XTX owners

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

No one has measured Gemma 3 4B on the AMD Radeon RX 7900 XTX yet. The speeds above are estimates. Run the benchmark and yours becomes the first real number on this page.

Have a Radeon RX 7900 XTX? Add your real speed

One command times Gemma 3 4B 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 -- gemma3:4b

Windows (PowerShell)

$env:GPUFIT_MODEL="gemma3:4b"; irm https://gpufit.dev/bench.ps1 | iex

How the benchmark works

GPUs that run Gemma 3 4B comfortably

Models that run well on the AMD Radeon RX 7900 XTX

Frequently asked questions

Can AMD Radeon RX 7900 XTX run Gemma 3 4B?

Yes. The AMD Radeon RX 7900 XTX can run Gemma 3 4B fully in VRAM at FP16 (full quality), using about 9.5 GB of the 24 GB available, at roughly 67 tokens/second.

How much VRAM does Gemma 3 4B need?

About 3.5 GB at Q4_K_M with 8,192 tokens of context, and about 9.5 GB at full FP16 precision.

How fast is Gemma 3 4B on the AMD Radeon RX 7900 XTX?

Roughly 67 tokens per second at FP16, estimated from the AMD Radeon RX 7900 XTX's 960 GB/s memory bandwidth.