An unnamed Intel "Tiger Lake-U" quad-core processor was spotted on Futuremark database by _rogame, featuring 2.80 GHz nominal clock-speeds. Barring the 28 W i7-1068NG7 and i5-1038NG7, which are
exclusive for MacBooks and aren't considered U-segment, all current-gen "Ice Lake" client chips have their nominal clock speeds ranging between 1.00 to 1.30 GHz. Given this, 2.80 GHz would qualify as a big jump for a U-segment "Tiger Lake" chip. We know from a separate report that "Tiger Lake" could also offer Turbo Boost frequencies
as high as 4.70 GHz for the top Core i7-1185G7 part, a similar jump from the 3.90 GHz max boost of the current-gen i7-1065G7, all while retaining a 15 W nameplate TDP.
The Futuremark database listing only mentions nominal clock of 2.80 GHz, and the CPU core configuration of 4-core/8-thread. The hardcoded CPU name string of this prototype specifies "Tiger Lake U," confirming this is a 15 W part, and not a 28 W part that will be gobbled down by Apple. Intel's newfound clock-speed headroom could be attributed to the company's refined 10 nm+ silicon fabrication node. "Tiger Lake" combines "Willow Cove" CPU cores with an iGPU based on the company's ambitious new Xe graphics architecture, marking its commercial debut. "Tiger Lake" is
expected to launch around September-October, 2020.