Cores, Cache, Content, and Characterization: IBM's Second Generation 14-nm Product, z15. - David Wolpert 001; Christopher J. Berry; Brian Bell 001; Adam Jatkowski; Jesse Surprise; John Isakson; Ofer Geva; Brian Deskin; Mark Cichanowski; Dina Hamid; Chris Cavitt; Gregory Fredeman; et al. (IEEE J. Solid State Circuits, 2021)