IDF 2014 – Intel Core M: architecture, performance, 2-in-1 designs
Although it is a tick, Broadwell has clock-per-clock improvements when compared to Haswell due to refined microarchitecture changes that you can see in the slides. Much more important are the changes made to the integrated GPU, which is based on a highly modified architecture.
The Broadwell GT2 now has 24 EU’s (from 20 EU present in Haswell’s GT2), is DirectX 12 ready and has full support for OpenCL 2.0 and it’s heterogeneous computing. The media part of the IGP has also been improved, now it will support decode / encode and display for 4K content.