AMD Polaris 10 is the faster GPU, which promises Radeon R9-390/390X
AMD Polaris 11 is the smaller GPU, designed for laptops, but it will most likely appear on low-end to mid-range desktop video cards. On the desktop side there hasn't been a new low-end video card since the AMD Radeon R7-240 and nVidia Geforce GT 730, as both manufacturers recycled old chips for the cheaper models: AMD Radeon R5-230
AMD Vega 10 was previously announced for a 2017 launch, but rumors are circulating about problems with high-end configurations of Polaris 10, so they may decide to launch Vega 10 early, before the end of this year.
In this slide AMD detailed the target of Polaris 10. For this (internal testing) benchmark they used a Core i7-4790K
In laptops AMD hopes to achieve "console caliber" performance, which will allow some gaming, video editing and CAD apps on a relatively unimpressive laptop configuration and at a low price.
The FP4/AM4 Bristol Ridge platform will also be launched at Computex, which is really needed to get fans interested again in AMD hardware. Unfortunately this platform will not address enthusiasts, but rather the mainstream users, who may be satisfied with a cheap APU or with an even cheaper dual core/quad core processor. The Bristol Ridge product family will bring to the table DDR4
This is the leaked screen capture, which revealed most of the new information.
This article was mostly based on this WCCFtech post.