I've just had some hands-on experience with my brother's new Yoga 3 Pro with the Core M 5Y70 - honestly, I don't think it performs all too great, at least in my use case. At first I thought it was fine, but it struggled with 1080p playback on both YouTube and videos on the drive - stuttering a bit, not to mention the audio kept crackling (it didn't for mp3 playback). There was some noticeable stutter on scrolling in some applications as well. This was all in performance mode, plugged into the wall. It just doesn't seem like it could multitask well, this chip - maybe Core M is just a step too far for low voltage processors in a laptop.