https://www.cnet.com/news/acer-unveils-its-first-amd-powered-chromebook/

We'll need to get the full list of specs and prices to figure out exactly how much lower. But, for now, we know that the new AMD-powered Chromebook 315 accommodates twice as much RAM (8GB) as the Intel-powered Chromebook 15 -- and features two USB-C ports, two USB 3.0 ports, Bluetooth 4.2 and a backlit keyboard (on the touchscreen model only). 

The Chromebook 315 comes on the market in the US in February starting at $280, and in EMEA in April starting at €349.