3 days of work: DeepSeek V4.1 Flash answers 2.9x faster on my rig.
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3 days of work: DeepSeek V4.1 Flash answers 2.9x faster on my rig. Prefill, stock Maya v1.1.51 vs my build: 16K 1029 -> 1262 tok/s 116K 1753 -> 2651 tok/s 272K 1406 -> 2888 tok/s, 2.1x First token on 272K: 195 s -> 95 s. On 116K: 66 s -> 44 s. Decode stays about 70 tok/s on both. The 2.9x is first token on replays of my real Claude Code and Codex sessions, 4.7 s -> 1.6 s against stock v1.1.46. 4x 3090, PCIe 3.0, no NVLink. Stock on 272K is unstable, it pulls about 60 GB of experts per card from page cache and its 2nd run did only 622 tok/s. Above is its better run. Below: what I tried, w
Posted by Alexey Fateev (9.7k followers) 3 h ago · 30 likes · 1.5k views · view the original post on X. Kept by the Dev Radar as AI dev tools.
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