---
id: pr-sglang-19143
repo: sgl-project/sglang
pr: 19143
title: 'feat: Support MXFP4 quantized dense models on AMD CDNA2/CDNA3 GPUs'
author: fengli1702
date: '2026-04-16'
url: https://github.com/sgl-project/sglang/pull/19143
source_category: upstream-code
architectures:
- sm100
tags:
- fp4
- nvfp4
- quantization
techniques: []
hardware_features:
- fp4
- nvfp4
kernel_types:
- quantization
languages:
- python
captured_at: '2026-04-27'
status: merged
merge_sha: 2cc52d83263281fbd8b9c3a33b9455df0c34c232
inclusion_reason: kernel file changes
changed_paths:
- python/pyproject_other.toml
- python/sglang/srt/configs/model_config.py
- python/sglang/srt/layers/quantization/__init__.py
- python/sglang/srt/layers/quantization/petit.py
- python/sglang/srt/layers/quantization/petit_mxfp4.py
- python/sglang/srt/layers/quantization/petit_nvfp4.py
- python/sglang/srt/layers/quantization/petit_utils.py
- python/sglang/srt/server_args.py
head_ref_oid: c38dd53598a9393252216933ebd4e131712f345a
artifact_dir: evidence/pull-bundles/sglang/gh-19143
---
# feat: Support MXFP4 quantized dense models on AMD CDNA2/CDNA3 GPUs

- Repository: `sgl-project/sglang`
- PR: [19143](https://github.com/sgl-project/sglang/pull/19143)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `python/pyproject_other.toml`
- `python/sglang/srt/configs/model_config.py`
- `python/sglang/srt/layers/quantization/__init__.py`
- `python/sglang/srt/layers/quantization/petit.py`
- `python/sglang/srt/layers/quantization/petit_mxfp4.py`
- `python/sglang/srt/layers/quantization/petit_nvfp4.py`
- `python/sglang/srt/layers/quantization/petit_utils.py`
- `python/sglang/srt/server_args.py`

## Evidence Bundle

`evidence/pull-bundles/sglang/gh-19143`
