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gpt-oss-120b-heretic-v2-mxfp4-q8-hi
Performance
4k
tokens
1,054
PP tok/s
71.7
TG tok/s
3887
TTFT (ms)
59.6
Peak mem (GB)
Hardware
Chip
M3 Ultra (60c)
Memory
256 GB
GPU Cores
60
Software
oMLX
v0.2.17
macOS
macOS 26.2
Context
4,096
Performance by Context Length
| Context | PP tok/s | TG tok/s | Peak Mem | |
|---|---|---|---|---|
| 1k | 871.4 | 68.9 | 59.5 GB | view |
| 4k | 1,054 | 71.7 | 59.6 GB | current |
| 8k | 1,047 | 65.4 | 59.8 GB | view |
| 16k | 982.1 | 55.8 | 60.0 GB | view |
| 32k | 855.6 | 46.3 | 60.6 GB | view |
Batching Results
| Batch Size | TG tok/s | Speedup |
|---|---|---|
| 1× | 68.9 | 1.00× |
| 2× | 92.6 | 1.34× |
| 4× | 126.9 | 1.84× |
| 8× | 163.4 | 2.37× |