Originally launched as an exclusive for Intel 9-series chipset motherboards, Intel's unlocked Core i5 and Core i7 "Devil's Canyon" quad-core processors, are now supported on a large number of motherboards based on older 8-series chipsets (H81, B85, H87, and Z87), with a BIOS update from the board manufacturer. Intel posted a list of motherboards with "Devil's Canyon" chips, on its website. Most popular Z87-based motherboards are on this list, much to the relief of enthusiasts who spent a small fortune (read: over $300) on high-end Z87-based motherboards, a little over a year ago. "Devil's Canyon" combines specially binned "Haswell" Refresh silicon, with high-tolerance on-package electricals, LGA contact points, and a more efficient thermal interface material between the die and the integrated heatspreader (IHS). The lineup currently includes Core i5-4690K (3.50 GHz, 3.90 GHz Turbo Boost, 4 cores, 4 threads, 6 MB L3 cache, $250), and Core i7-4790K (4.00 GHz, 4.40 GHz Turbo Boost, 4 cores, 8 threads, 8 MB L3 cache, $350). Find the list of motherboards for Core i7-4790K here, and for Core i5-4690K here.