---
title: "DeepSeek-V4-Flash in MXFP4 is too slow on CPU — Stuff That Spins"
description: "I have an old Xeon rig with 512Gb of 4-channel DDR4 2133 memory and E5-2699v4 processor. For GPU I have GTX 1060 with 6Gb of VRAM, so I use CPU only mode. I can run GLM 5.2 with 40B active parameters in Q4_K_XL at 1.8 t/s, but as you can understand it is too slow. So I wanted to give a try to a new…"
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keywords: ["SpinGraph", "spin analysis", "GEO"]
date: "2026-07-05T07:35:58+00:00"
modified: "2026-07-05T10:07:53.767553+00:00"
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# DeepSeek-V4-Flash in MXFP4 is too slow on CPU

**Source:** Unknown  
**Published:** July 5, 2026  
**Original:** https://www.reddit.com/r/LocalLLaMA/comments/1unvy5i/deepseekv4flash_in_mxfp4_is_too_slow_on_cpu/  

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