AMD's Computex presentation covered Polaris, Zen, and the mobile versions of Bristol Ridge and Stoney Ridge. However, as Ian Cutress pointed out, the expected AM4 launch with desktop versions of Bristol Ridge didn't happen.
Here is Cutress's commentary:
So, are we to assume the desktop Bristol Ridge launch was cancelled? It's worth noting that during the Zen portion of the presentation, Lisa Su was positioning AM4 as a premium platform. Perhaps they thought that launching it now with Bristol Ridge would send the wrong message. Or they were worried that some AM4 boards focused on Bristol Ridge wouldn't support adequate TDP for Zen, thus fragmenting the platform?
Here is Cutress's commentary:
Despite many users believing that AMD would be discussing AM4 and their desktop versions of Bristol Ridge at Computex, the opposite seems to be the case. AMD isnt discussing it, and Ive hit a solid wall with the motherboard manufacturers as well. If rumors are to be believed, based on a CPU cooling company Facebook post that was deleted, the socket is mostly likely the same dimensions as AM2/AM3, however we cant even verify that. It would seem that whatever your prediction for hearing about new desktop products was, add at least a quarter.
But put this into perspective here. Bristol Ridge is still based on Excavator a core that was initially designed to run at 15W in dual-module configuration. AMD stated at the Tech Day in 2015 that the higher TDP/frequency you run a Carrizo platform, the lower the differential to a 2014 Kaveri platform. AMD teased Carrizo on the desktop with the Athlon X4 845 at 65W for the FM2+ socket (and I apologize that I havent got around to writing the review fully yet), however this was one part without integrated graphics and a very low-frequency ceiling when overclocking. Despite this, Carrizo on the desktop was still a surprising performer, but only at the low powered part of the product stack. If were going to see Carrizo mk2 and Bristol Ridge on the desktop, it might only be for those lower power 35W-45W parts, and theres no point releasing a platform with just 45W parts if it is going to evolve into the extreme platform with a Zen drop in: you need both, especially if each one is designed for specific markets. Theres an obvious line of thought Im going down here, and while I wont say it outright, the signs are getting less fuzzy as time moves on.
So, are we to assume the desktop Bristol Ridge launch was cancelled? It's worth noting that during the Zen portion of the presentation, Lisa Su was positioning AM4 as a premium platform. Perhaps they thought that launching it now with Bristol Ridge would send the wrong message. Or they were worried that some AM4 boards focused on Bristol Ridge wouldn't support adequate TDP for Zen, thus fragmenting the platform?