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Qwen3.5-397B-A17B

M3 Ultra (80c) · 512 GB · 4bit · 2026-03-15

Performance

1k

tokens

487.5

PP tok/s

35.3

TG tok/s

2101

TTFT (ms)

210.4

Peak mem (GB)

Hardware

Chip M3 Ultra (80c)

Memory 512 GB

GPU Cores 80

Software

oMLX v0.2.13

macOS macOS 26.3.1

Context 1,024

Performance by Context Length

Context	PP tok/s	TG tok/s	Peak Mem
1k	487.5	35.3	210.4 GB	current
4k	520.7	33.8	210.7 GB	view

Batching Results

Batch Size	TG tok/s	Speedup
1×	35.3	1.00×
2×	57.6	1.63×
4×	80.7	2.29×