z10 EC 4-Core Chip Details
Each PU chip is a four-core (quad-core) chip. There are five PU chips on each MCM. The five PU chips come in two versions. For models E12, E26, E40, and
E56, the processor units on the MCM in each book are implemented with a mix of three active cores and four active cores per chip (3 x 3 cores active, plus 2 x 4 cores active) resulting in 17 active cores per MCM. All MCMs in all models that we have discussed have 17 active cores. This means that Model E12 has 17, Model E26 has 34, Model E40 has 51, and Model E56 has 68 active PUs.
For the Model E64, the PUs on the MCM in the first book are implemented with 17 active cores (3 x 3 cores active, plus 2 x 4 cores active), plus three MCMs with 20 active cores (5 x 4 cores active). This means that there are 77 active PUs.
Each core on the chip runs at a cycle time of 0.227 nanoseconds (4.4 GHz). Each quad-core PU chip measures 21.97 x 21.17 mm, contains 6 km of wire, features 1188 signal and 8765 I/O connections, and has close to one billion (994 million) transistors.