HP is offering the 15" convertible Envy x360 with AMD's new Ryzen processors. Performance should be better than Intel's i7-8550U processor in multithreded tasks and graphics dependent tasks (while being slower in single threaded tasks).
Base specs include
15.6" diagonal FHD UWVA micro-edge WLED-backlit multitouch-enabled edge-to-edge glass (1920 x 1080)
8 GB DDR4-2400 (2 x 4 GB) (User upgrade-able)
3-cell, 55.8 Wh Lithium-ion prismatic Battery
Intel 8260 wifi
Dimensions (W X D X H): 14.16 x 9.8 x 0.77 in
Weight: 4.75 lb