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gpt-oss-20b-MXFP4-Q8

M2 Max (30c) · 32 GB · 4bit · 2026-04-19

Performance

4k

tokens

495.3

PP tok/s

62.1

TG tok/s

8269

TTFT (ms)

11.8

Peak mem (GB)

Hardware

Chip M2 Max (30c)

Memory 32 GB

GPU Cores 30

Software

oMLX v0.3.6

macOS macOS 15.7.5

Context 4,096

Performance by Context Length

Context	PP tok/s	TG tok/s	Peak Mem
1k	446.3	68.4	11.8 GB	view
4k	495.3	62.1	11.8 GB	current

Batching Results

Batch Size	TG tok/s	Speedup
1×	68.4	1.00×
2×	86.6	1.27×
4×	99.5	1.45×