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Qwen3.5-397B-A17B

M3 Ultra (80c) · 512 GB · 4bit · 2026-03-10

Performance

1k

tokens

463.3

PP tok/s

34.1

TG tok/s

2210

TTFT (ms)

210.4

Peak mem (GB)

Hardware

Chip M3 Ultra (80c)

Memory 512 GB

GPU Cores 80

Software

oMLX v0.2.6

macOS macOS 26.3

Context 1,024

Performance by Context Length

Context	PP tok/s	TG tok/s	Peak Mem
1k	463.3	34.1	210.4 GB	current
4k	512.4	35.0	210.7 GB	view

Batching Results

Batch Size	TG tok/s	Speedup
1×	34.1	1.00×
2×	58.1	1.70×
4×	81.7	2.40×