The engineering card appears to be equipped with CPU-grade heatsink + cooler and it is connected to an Alder Lake motherboard through a PCIe riser. Koduri does not really mention that this is the DG2 card, but the test system is running 3DMark with the Port Royal ray tracing test in the test suite, and we know only DG2 GPUs among Intel's upcoming discrete models support ray tracing.
https://www.notebookcheck.net/Raja-Koduri-teases-Intel-Xe-HPG-DG2-graphics-engineering-board-with-ray-tracing-capabilities.527552.0.html