Two sources familiar with the matter claim Intel will use an enhanced version of TSMC's 7nm process:
The chip manufacturing technology for the DG2 is expected to be more advanced than the Samsung Electronics Co Ltd 8-nanometer process used in Nvidia’s most recent round of graphics chips released in the fall, the people said. They added it would also have a leg up on the Advanced Micro Devices graphics chips made on TSMC’s 7-nanometer process.Other claims made by the article contradict rumors that popped up on tech sites in recent months. Reuters heard the DG2 will not hit the market until late this year or in early 2022 and that the chip would compete with AMD and NVIDIA GPUS in the $400 to $600 price range.
Earlier rumors pointed to an earlier launch and the DG2 being more of a mid-range part.