Today, after months of previews, leaks, and a smattering of official disclosures, AMD is launching its much-touted Radeon R9 Fury X. The new GPU packs a number of potent firsts — it’s the largest GPU AMD has ever built, the first GPU to use HBM, and the first high-end card AMD has launched to compete directly against Nvidia’s Maxwell since that card debuted almost nine months ago. AMD has been promising ...