With the new "Bean Canyon" NUCs, Intel will introduce three new Coffee Lake-U CPUs: one dual-core (i3-8109U) and two quad-cores (i5-8259U, i7-8559U). All new CPUs will integrate the improved Iris Plus 655 GPU with 128 eDRAM and 48 execution units for superior mobile graphics processing power. As usual, the NUCs do not include RAM and storage solutions.
https://www.notebookcheck.net/Intel-reveals-Bean-Canyon-NUCs-with-Coffee-Lake-U-CPUs-and-Iris-Plus-iGPUs.313768.0.html