Can I run it?

Can I run Qwen3 Coder 30B A3B Instruct on Radeon RX 7800 XT?

Tight fit

Tight fit fully on your Radeon RX 7800 XT at UD-Q3_K_XL, 8K context, about 53–73 tok/s. Weights 12.9 GB plus 0.75 GB of KV cache — 14.0 GB of 14.7 GB usable.

Qwen3 Coder 30B A3B Instruct details · Radeon RX 7800 XT page · How this estimate is made

Run commands

llama-server -hf unsloth/Qwen3-Coder-30B-A3B-Instruct-GGUF:UD-Q3_K_XL -c 8192 -ngl 48

ollama run qwen3

lms get unsloth/Qwen3-Coder-30B-A3B-Instruct-GGUF
# Then load quant UD-Q3_K_XL

Assumptions

• Estimate from memory bandwidth, not a benchmark. Decode speed uses 55–75% of peak bandwidth.
• KV cache is FP16. Engine overhead assumes llama.cpp (0.3 GB + 1% of the weights). Ollama is closer to 0.9 GB + 3%, LM Studio closer to 1 GB + 3%.
• UD-Q3_K_XL size is the real GGUF file size from Hugging Face.
• 0.5 GB is reserved because this GPU also drives a display, then 5% of the rest is left free.
• Speed is quoted at 8K context, not at the maximum context that still fits.

Larger models that also fit

• Can I run Cyber Tiel Coder 35B A3B GGUF MTP on Radeon RX 7800 XT? — Tight fit, Q2_K, 56–76 tok/s (estimate)
• Can I run Kwaipilot KAT Coder V2.5 Dev on Radeon RX 7800 XT? — Tight fit, IQ3_XXS, 56–76 tok/s (estimate)
• Qwen2.5 Coder 32B Instruct — Tight fit, IQ3_XXS, 23–31 tok/s (estimate)

Updated 2026-10-24. Profile on this page is the device default plus 32 GB of DDR5-5600 system RAM.