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Can Ryzen AI Max 390 64GB run Qwen2.5-32B-Instruct?

AMD · 48 GB LPDDR5X · 215 GB/s bandwidth · Alibaba · 32.8B · model ctx up to 128K

CC · WorkableComposite score: VRAM headroom × 0.5 + tok/s speed × 0.5. Q4 @ 8K context.
ROCM

Yes — the Ryzen AI Max 390 64GB (48 GB LPDDR5X) can run Qwen2.5-32B-Instruct. At Q4 with the default 8K context it needs ≈ 25.6 GB VRAM (weights 18.04 GB + KV cache 6.56 GB + 1 GB runtime overhead), which fits within 48 GB. Decode at Q4/8K: ≈ 4.2 tok/s (estimated, batch 1). FP16 needs ≈ 73.16 GB — does not fit on this card. Estimates come from memory-bandwidth math; rows tagged measured override estimates. Relative ranking is more reliable than absolute tok/s. Methodology.

Fit & speed by quant and context

QuantContextVRAM neededFits?tok/s (decode)
Q44K22.32 GBYes4.2 est.
Q48K default25.6 GBYes4.2 est.
Q432K45.28 GBYes4.2 est.
FP164K69.88 GBNo1.5 est.
FP168K default73.16 GBNo1.4 est.
FP1632K92.84 GBNo0.9 est.

Fits = weights + KV(ctx) + 1 GB overhead ≤ 95% of VRAM. Measured anchors are context-agnostic; the fit verdict is recomputed per context. A missing tok/s means the model is far beyond this card (offload-only territory).

VRAM breakdown at 8K context

QuantWeightsKV cacheOverheadTotal neededRyzen AI Max 390 64GB VRAM
Q418.04 GB6.56 GB1 GB25.6 GB48 GB
FP1665.6 GB6.56 GB1 GB73.16 GB48 GB

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