cache

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

March 8, 2020May 25, 2021 David Schor 14HP, cache, eDRAM, IBM, IBM Z, ISSCC, ISSCC 2020, z/Architecture, z14, z15

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.

Architectures Server Processors

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

September 14, 2019May 25, 2021 David Schor 14 nm, 14HP, cache, eDRAM, IBM, z/Architecture, z15

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.

Architectures Circuit Design ISSCC 2018

AMD’s Zen CPU Complex, Cache, and SMU

April 18, 2018May 25, 2021 David Schor 14 nm, 14LPP, AMD, cache, floorplan, ISSCC, ISSCC 2017, ISSCC 2018, SRAM, x86, Zen

A look at AMD’s Zen CPU Complex (CCX), a fully independent and modular cluster of up to four cores that are incorporated into a full SoC to form complete products such as their Zeppelin die.