So my your saying my 920 can't do this then?
View attachment 96575
As it doesn't have a full HD screen or as you put it a HD screen (it has a 1280 x 768 resolution) .
Please don't spread fud, MS enabled the three columns with the 8.1 update via an option under start + themes for devices with less than 5".
Here is an extract from the article below "it turns out that all Windows Phones will indeed get three-column support for Live Tiles". Yes initially you would have needed to do a reg hack on the Ativ S prior to the update to enable the three columns.
Video of three column support on older devices with Windows Phone 8.1
https://www.youtube.com/watch?v=77yCxXc5RcE&feature=player_detailpage#t=48
Extract from the above video "it was so popular we decided to bring this feature to all screen sizes, so now with windows phone 8.1 any user can turn on this enhanced layout providing an expanded canvas to express their individuality".