AMD's CES 2014 Press Conference Webcast Replay is online, letting us play fly-on-the-wall for their presentation at the show. At this point in the presentation they discuss their upcoming Mantle API, claiming for the record that they've seen an up to 45% framerate increase in Battlefield 4 using the same hardware under the new API. They offer a little BF4 gameplay footage to show this off, but there is no footage not using Mantle for comparison (oddly, the tidbit they show had two visible full-stop hitches). They brag that Mantle development is booming, with three engines working on integration at five developers, encompassing 20+ games. The patch to enable Mantle support in BF4 is expected sometime this month. Thanks PCGamesN.