The processor upgrade will being the AMD-powered business laptops more in line with their Intel Whiskey Lake-U counterparts in terms of raw performance. Both subnotebooks will begin shipping this month for a starting price of about $1000 USD each.
https://www.notebookcheck.net/HP-EliteBook-735-G6-and-745-G6-get-2nd-generation-Ryzen-7-Pro-3700U-options.424799.0.html