According to official-looking documents posted on the site, the fastest version of Haswell's built-in GPU will be known as the Intel HD Graphics 5200. This flavor will use the GT3 version of the integrated graphics processor paired with dedicated memory on the CPU package, and it'll apparently be restricted to high-performance notebooks. Ultrabooks will get the HD Graphics 5100 and 5000, which will share the GT3 core but won't employ on-package memory.
As they are on the desktop, GT2 versions of Haswell will be part of the HD Graphics 4000 family. 4200 and 4400 variants will hit ultrabooks, and a 4600 version is coming for beefier notebooks.
Source: VR Zone