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z15

IBM Doubles Its 14nm eDRAM Density, Adds Hundreds of Megabytes of Cache

Architectures Circuit Design ISSCC 2020 March 8, 2020 5

IBM doubles its 14-nanometer eDRAM density through physical design work, enabling the packing of hundreds of additional megabytes of cache on the latest z15 microprocessor and system controller.

IBM Introduces Next-Gen Z Mainframe: The z15; Wider Cores, More Cores, More Cache, Still 5.2 GHz

Architectures Server Processors September 14, 2019 2

IBM introduces its latest Z mainframe, the z15. Here’s a detailed look at the changes and enhancements that were made including the new system architecture and CPU microarchitecture.