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gpt-oss-20b-MXFP4-Q8
Performance
195k
tokens
238.2
PP tok/s
17.0
TG tok/s
839519
TTFT (ms)
19.5
Peak mem (GB)
Hardware
Chip
M4 Pro (20c)
Memory
48 GB
GPU Cores
20
Software
oMLX
v0.5.3
macOS
macOS 26.5.2
Context
200,000
Performance by Context Length
| Context | PP tok/s | TG tok/s | Peak Mem | |
|---|---|---|---|---|
| 1k | 791.5 | 67.3 | 11.8 GB | view |
| 4k | 799.4 | 65.1 | 11.8 GB | view |
| 8k | 765.5 | 60.6 | 12.0 GB | view |
| 16k | 701.3 | 54.6 | 12.3 GB | view |
| 32k | 581.8 | 45.7 | 12.8 GB | view |
| 64k | 467.1 | 34.5 | 14.0 GB | view |
| 128k | 332.2 | 23.8 | 16.3 GB | view |
| 195k | 238.2 | 17.0 | 19.5 GB | current |
Batching Results
| Batch Size | TG tok/s | Speedup |
|---|---|---|
| 1× | 67.3 | 1.00× |
| 2× | 97.7 | 1.45× |
| 4× | 123.7 | 1.84× |
| 8× | 138.6 | 2.06× |