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Qwen3.5-27B-Heretic

M1 Ultra (64c) · 128 GB · bf16 · 2026-03-13

Performance

16k

tokens

199.4

PP tok/s

9.0

TG tok/s

82172

TTFT (ms)

54.2

Peak mem (GB)

Hardware

Chip M1 Ultra (64c)

Memory 128 GB

GPU Cores 64

Software

oMLX v0.2.10

macOS macOS 26.4

Context 16,384

Performance by Context Length

Context	PP tok/s	TG tok/s	Peak Mem
1k	201.6	10.4	52.5 GB	view
4k	207.0	10.1	52.8 GB	view
8k	205.0	9.7	53.3 GB	view
16k	199.4	9.0	54.2 GB	current

Batching Results

Batch Size	TG tok/s	Speedup
1×	10.4	1.00×
2×	6.9	0.66×
4×	13.5	1.30×