Together with the recently leaked Core i3-8121U, the M3-8114Y will be one of the first 10 nm ULV CPUs launched by Intel this year. As far as performance goes, the new M3 will be a tad slower than the i3, with a 1.5 GHz default clock and boost clocks reaching around 3.0 GHz. TDP should be around 4 W, making them ideal for fanless entry-level notebooks.
https://www.notebookcheck.net/Intel-Cannon-Lake-Y-M3-8114Y-dual-core-10-nm-CPU-gets-leaked-specs.303668.0.html