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Can the Radeon RX 7900 XTX Run Qwen3 8B?

Runs

Yes. Qwen3 8B at Q4_K_M is a 5 GB download (Hugging Face file listing for unsloth/Qwen3-8B-GGUF), and the Radeon RX 7900 XTX has 24 GB of VRAM, leaving about 19 GB for the KV cache and runtime. No published speed measurement for this pair passes SpecPicks' sanity checks yet, so no tokens-per-second figure is quoted.

Model file5 GBQ4_K_M
VRAM24 GBRadeon RX 7900 XTX
Headroom19 GBafter weights
Median speed—0 cited runs
Bandwidth ceiling~191 tok/s960 GB/s ÷ 5.03 GB

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Published runs for Qwen3 8B on the Radeon RX 7900 XTX

No published run for this pair has passed the checks yet. 2 rows were rejected (see how the checks work below).

More about this pair

How much VRAM does Qwen3 8B need?

The Q4_K_M file is 5 GB. Add roughly 1.5 GB for the runtime and an ~8K-token context, so about 6.5 GB of VRAM holds it comfortably. Longer contexts grow the KV cache and need more.

What speed does Qwen3 8B reach on the Radeon RX 7900 XTX?

No published run of Qwen3 8B on the Radeon RX 7900 XTX has been cited yet. Generation reads every weight once per token, so the Radeon RX 7900 XTX's 960 GB/s of memory bandwidth divided by the 5.03 GB file puts the theoretical ceiling near 191 tokens per second. That is an upper bound, not a speed estimate: kernel, launch and compute overhead keep real runs below it.

Check another pair

See the full matrix → · All Radeon RX 7900 XTX benchmarks →

Qwen3 8B on other GPUs

Other models on the Radeon RX 7900 XTX

How the checks work

The fit is the Q4_K_M file size against the card's VRAM, with 1.5 GB kept for the runtime and an ~8K context. A published run counts only if the pair fits, the run is Q4-class, its source does not call it an estimate, it is under the bandwidth ceiling (memory bandwidth ÷ GB read per token: the whole file for a dense model, only the active experts' weights for a mixture-of-experts model such as gpt-oss-20b or Qwen3 30B-A3B, which is why those can post figures above bandwidth ÷ file size), it is not slower than the same card on a model twice its size, a single run is not slower than the same card on a larger dense model, and it is not one figure pasted across many cards. The whole matrix is downloadable as a CSV under CC BY 4.0.

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This page is editorial synthesis based on publicly available information. No independent first-party benchmarking is reported.