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gpt-oss-20b-MXFP4-Q8

M5 (10c) · 24 GB · 4bit · 2026-04-26
Performance
8k
tokens
1,139
PP tok/s
35.0
TG tok/s
7192
TTFT (ms)
11.9
Peak mem (GB)
Hardware
Chip M5 (10c)
Memory 24 GB
GPU Cores 10
Software
oMLX v0.3.6
macOS macOS 26.3.1
Context 8,192
Performance by Context Length
Context PP tok/s TG tok/s Peak Mem
1k 895.0 42.3 11.7 GB view
4k 1,142 39.1 11.8 GB view
8k 1,139 35.0 11.9 GB current
Batching Results
Batch Size TG tok/s Speedup
42.3 1.00×
53.9 1.27×
59.6 1.41×
64.5 1.52×