The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
Date has passed, but the pin description does not confirm it happened then; unverified.
DSOGaming's own headline and 20 March 2014 publish date, falling squarely within the pin's stored GDC 2014 window (16-22 March), report DirectX and OpenGL catching up with Mantle's low-level hardware access, though the page itself could not be fetched to quote directly.
PC Perspective's article confirms DirectX 12 and a new OpenGL were positioned to challenge AMD Mantle "at GDC," previewing sessions promising reduced CPU overhead and "up to 10x or more" less driver overhead - consistent with the pin's GDC 2014 dateline, though published about six weeks ahead of the show itself.[1]
Something missing or wrong? Say it in your own words: a link that backs this pin up, a different start or end date and why, or a fact it lacks or gets wrong. The AI checks it against this pin's sources, searches for better ones, and adds any page that backs you up. The pin's own sources still count most.
