Intel has added 8 new processors to its lineup including two desktop chips and half a dozen processors for laptops and other lower-power products. As CPU-World notes, some of the new chips are based on Intel’s 6th-gen Intel Core “Skylake” architecture, but there are also a few chips that fit into the older 5th-gen “Broadwell” family.
The Intel Celeron 3855U is a 1.6 GHz dual-core Skylake processor and the Celeron 3955U is a 2 GHz dual-core option.
Intel’s Core i3-6098P and Core i5-6402P chips are new Skylake desktop-class processors.
The 2.2 GHz Core i5-5200DU and 2.4 GHz Core i7-5500DU chips are Broadwell-based dual-core desktop processors which seem at first glance to be  similar to the existing Core i5-5200U and Core i7-5500U.
And the 2.3 GHz Core i5-6198DU and 2.5 GHz Core i7-6498DU are Skylake chips seem to be variants of the existing Core i5-6200U and Core i7-6500U. They’re even the same price as those chips. It’s not clear at this point what difference there is between a “U” chip and a “DU” model.