Which of the following characterizes the improvement?

The design of the z13 Systems processor unit (PU) chip has been enhanced over the zEC12.

Which of the following characterizes the improvement?
A . Faster processor cycle time on z13 (5.5 GHz instead of 5.0 GHz on zEC12).
B . Improved cryptographic and compression engine shared over all cores.
C . Larger cache level sizes on z13 compared to zEC12.
D . Up to six active cores per chip on z13 compared to four active cores on zEC12.

View Answer

Answer: C

Explanation:

Contributing to the additional capacity on the z13 and z13s are numerous improvements in processor chip design, including new instructions, multithreading, and redesigned and larger caches.

Z13 processor:

* L1 cache

96 KB I-L1

128 KB D-L1 per core

* L2 cache

2 MB I-L2

2 MB D-L2 per core

L3 cache 64 MB shared

zEC12 processor:

L1 cache64+96 KB/core

L2 cache1+1 MB/core

L3 cache48 MB/chip

References:

https://en.wikipedia.org/wiki/IBM_zEC12_(microprocessor)

https://en.wikipedia.org/wiki/IBM_z13_(microprocessor)