ATI Madison is a mobile GPU based on AMD/ATI's TeraScale 2 (Evergreen) architecture, built on a 40 nm manufacturing process. It packs 627 million transistors on a 104 mm² die. This chip delivers DirectX 11.2 and OpenGL 4.4 support, with 400 unified shader cores, 20 texture mapping units, and 8 ROPs.

Variants like the Mobility Radeon HD 5650 (Madison PRO) hit around 450–650 MHz GPU clocks, offer up to 1 GB of GDDR3 or GDDR5 memory on a 128-bit bus, and feature a TDP between 15 W and 30 W depending on configuration.

In short, ATI Madison brought capable DirectX 11-era graphics performance to mobile platforms—delivering solid efficiency, modern features, and dependable support for mainstream laptops and workstation-class notebooks.