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Can the AMD Radeon RX 9070 run Gemma 4 31B?

Radeon RX 9070 × Gemma 4 31B8K context
Yes, with heavy quantizationFits only at a low-quality quant
Memory at Q2_K13.5 GB of 16 GB
Weights 11.7 GBKV cache 1.2 GBRuntime 0.6 GB
QuantQ2_KHeavily degraded
Speed~33tokens per second
Max context66Ktokens that fit at Q2_K
  1. FP16
  2. Q8_0
  3. Q6_K
  4. Q5_K_M
  5. Q4_K_M
  6. Q3_K_M
  7. Q2_K

Only just. Gemma 4 31B fits on the AMD Radeon RX 9070 at Q2_K, which costs noticeable quality. Expect about 33 tokens/second. A card with more memory is a better experience.

Try other context lengths

Run it with Ollama

Ollama's default gemma4:31b download is Q4_K_M, which needs about 20.8 GB, more than the 16 GB available. Download the Q2_K GGUF instead (LM Studio lists quants per model), or try a smaller context length.

New to this? Step-by-step setup for the Radeon RX 9070

Run it in the cloud

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Memory needed by quantization

At 8,192 tokens of context. The black line marks the 16 GB the AMD Radeon RX 9070 can use.

QuantQualityMemoryFits?Speed
FP16Full quality64.4 GBToo big—
Q8_0Near-lossless35 GBToo big—
Q6_KExcellent27.4 GBToo big—
Q5_K_MVery good24 GBToo big—
Q4_K_MGood, most popular20.8 GBToo big—
Q3_K_MNoticeably degraded17.1 GBToo big—
Q2_KHeavily degraded13.5 GBFits~33 tok/s

Measured speed from real Radeon RX 9070 owners

Tokens per second that people measured on their own AMD Radeon RX 9070, next to our estimate.

No one has measured Gemma 4 31B on the AMD Radeon RX 9070 yet. The speeds above are estimates. Run the benchmark and yours becomes the first real number on this page.

Have a Radeon RX 9070? Add your real speed

One command times Gemma 4 31B 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 -- gemma4:31b

Windows (PowerShell)

$env:GPUFIT_MODEL="gemma4:31b"; irm https://gpufit.dev/bench.ps1 | iex

How the benchmark works

GPUs that run Gemma 4 31B comfortably

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Models that run well on the AMD Radeon RX 9070

Frequently asked questions

Can AMD Radeon RX 9070 run Gemma 4 31B?

Only just. Gemma 4 31B fits on the AMD Radeon RX 9070 at Q2_K, which costs noticeable quality. Expect about 33 tokens/second. A card with more memory is a better experience.

How much VRAM does Gemma 4 31B need?

About 20.8 GB at Q4_K_M with 8,192 tokens of context, and about 64.4 GB at full FP16 precision.

How fast is Gemma 4 31B on the AMD Radeon RX 9070?

Roughly 33 tokens per second at Q2_K, estimated from the AMD Radeon RX 9070's 640 GB/s memory bandwidth.