Although it was detailed last week, Intel has now officially shed some light on its upcoming Intel GT3 HD 5000 series integrated graphics (IGP), codename Iris, that will be a key part in the 4th generation Core Haswell CPUs. In case you missed it, Intel Haswell chips will be available with GT1, GT2 and GT3 IGPs depending on the market level that CPU is aiming for.

The GT1 will feature 10 execution units (EUs) and will aim at entry- to mainstream-level CPU parts. The GT2 IGP will end up with 20 EUs and aim at mainstream- to performance-level market while the GT3, codename Iris, will feature 40 EUs and aim at high-performance notebooks. The GT3 will feature L4 eDRAM cache and use multi-chip modules (MCM) design. The GT3 will, according to a report from TechReport.com, also come to desktop parts as well.

The GT3 chip will have three different variants, most likely differentiated by clock speeds. The top version is the Iris Pro 5200 followed by the Iris 5100 and Intel HD Graphics 5000. As noted in the slides, the GT3 could bring graphics performance levels that could be in level with AMD's latest APUs.

As noted earlier, in addition to the performance gain, Haswell IGP will also bring some other improvements and features including faster Quick Sync video encoding, MPEG acceleration, support for 4K resolutions, triple screen output, and support for DirectX 11.1, OpenGL 4.0, and OpenCL 1.2.

As announced and rumored earlier, Intel's 4th generation Core Haswell part are scheduled to launch during the first week of June.


















Source: Intel