Besides the consumer Raven Ridge CPUs there are also 2 OEM 35w versions that are downclocked slightly while shaving off a huge chunk of TDP. They are named like 2400G but with an E on the end, ie 2400GE. I imagine if AMD really wanted to put the effort into a 15W chip they could manage a ~2.5ghz quad core with Ryzen modules.
https://www.anandtech.com/show/12319/zotac-displays-zbox-ma5...
Besides the consumer Raven Ridge CPUs there are also 2 OEM 35w versions that are downclocked slightly while shaving off a huge chunk of TDP. They are named like 2400G but with an E on the end, ie 2400GE. I imagine if AMD really wanted to put the effort into a 15W chip they could manage a ~2.5ghz quad core with Ryzen modules.