As you may know, the chip maker hired Raja Koduri, AMD Radeon Technologies Group's former head, to oversee this project as Chief Architect. Some slides detailing Intel's future GPU were shown at the IEEE International Solid-State Circuits Conference (ISSCC) in San Francisco. Interestingly, it looks like Intel is aiming to scale up its integrated graphics architecture, and to implement mechanisms to achieve higher clockspeeds.
The company's first 14 nm dGPU prototype, shown as a test-chip at the ISSCC, is a 2-chip solution. The first chip contains two key components, the GPU itself, and a system agent; and the second chip is an FPGA that interfaces with the system bus. The GPU component, as it stands now, is based on Intel's Gen 9 architecture, and features a three execution unit (EU) clusters. Don't derive numbers from this yet, as Intel is only trying to demonstrate a proof of concept.
Full details at TechPowerUp.