The new 15.6-inch Lavie N1585 laptop is currently the only model equipped with the unannounced Ryzen 7 Extreme Edition APU, which appears to have identical specs to the Ryzen 7 4800U model. Other specs include 16 GB or RAM plus 1 TB NVMe SSD, and NEC recommends it for light gaming.
https://www.notebookcheck.net/NEC-launches-15-6-inch-Lavie-laptop-with-mysterious-Ryzen-7-4000U-Extreme-Edition-APU.480567.0.html
Almost 50% cheaper?! I'm certainly not under the impression that Japanese prices are THAT inflated.
The bundled rams are clocked at DDR4-2666 (PC4-21333) which heavily limits the performance. An additional budget needs to be set aside for replacement with DDR4-3200 (PC4-25600) rams. There are 2 sodimm slots and supporting up to 32GB in total.