3dmark update includes API Test

"We're excited to introduce our new 3DMark API Overhead feature test - the world's first independent test for measuring differences in DirectX 12, DirectX 11 and Mantle API performance. It's also the very first public application to use DirectX 12 full stop. This is cutting edge stuff! "

http://steamcommunity.com/games/223850/announcements/detail/136572238832228771