Can a AMD Ryzen AI Max+ 395 “Strix Halo” (128GB) run Qwen3.8 Flash Next (MoE)?

Just about — Qwen3.8 Flash Next (MoE) runs at Q2_K (80.9 GB) at about 45–67 tok/s on a AMD Ryzen AI Max+ 395 “Strix Halo” (128GB).

How much memory does Qwen3.8 Flash Next (MoE) need?

Qwen3.8 Flash Next (MoE) needs about 81.8 GB at 4K context at its smallest quantization. A AMD Ryzen AI Max+ 395 “Strix Halo” (128GB) has 128.0 GB.

Tight fit: Qwen3.8 Flash Next (MoE) on a AMD Ryzen AI Max+ 395 “Strix Halo” (128GB) at Q2_K

Yes, but it's tight.

Tight / slow

Best fit: Qwen3.8 Flash Next (MoE) at Q2_K · 80.9 GB weights · 45–67 tok/s on a AMD Ryzen AI Max+ 395 “Strix Halo” (128GB).

Arena Text Overall · style-controlled

UnratedAmbiguous match

Ambiguous Arena identity; unrated

Arena identity is ambiguous. No exact configuration is present in the latest Overall entry set. No related-family rating is inherited. No rating is assigned or used for ranking. Local quantization quality is unmeasured.

Snapshot published 2026-10-08 · snapshot imported 2026-10-11 UTC · validated last-good data · manual refresh

Arena leaderboard dataset · Arena / lmarena-ai, Arena Leaderboard Dataset (CC BY 4.0). Selected Text Overall style-controlled rows; field names adapted, ratings unchanged. · dataset CC BY 4.0 · revision e16f90232986

Total memory at 4K context: 81.8 GB; Weights + KV cache + runtime overhead
Estimated generation: 45–67 tok/s
Estimated first token: ~3.1s

Every quantization on this machine

On small screens, each quant lists every metric below its name. On wider screens, scroll sideways for total memory, speed and fit. Keyboard: focus the table, then use the arrow keys. Quant names stay visible.

Qwen3.8 Flash Next (MoE) quantizations on AMD Ryzen AI Max+ 395 “Strix Halo” (128GB), estimated at 4K context. Weights and total memory are shown separately.
Quant	Weights	Total memory	Speed	Fit
Q2_K	80.9 GB	81.8 GB	45–67 tok/s	Tight / slow
Q3_K_M	92.0 GB	92.9 GB	— not resident	Won't fit
Q4_K_M	119.6 GB	120.5 GB	— not resident	Won't fit
Q5_K_M	134.7 GB	135.6 GB	— not resident	Won't fit
Q6_K	168.1 GB	169.0 GB	— not resident	Won't fit
Q8_0	188.3 GB	189.2 GB	— not resident	Won't fit
FP16	354.0 GB	354.9 GB	— not resident	Won't fit

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