Do the Intel® Xeon® Processors come with Cache Allocation Technology (CAT)?

Cache Allocation Technology (CAT) for Intel processors

Cache Allocation Technology (CAT) provides software-programmable control over the amount of cache space that can be consumed by a given thread, application, virtual machine, or container.
This allows, for example, operating systems to protect important processes, or hypervisors to prioritize important virtual machines even in a noisy data center environment.

The following statements clarify that Intel® Xeon® W Family (formerly Skylake) processors have CAT as a feature.

Same applies to Intel® Xeon® W Family (formerly Skylake) microprocessors.

In referring to the specification update in the SKX8. Intel CAT/CDP Might Not Restrict Cacheline Allocation Under Certain Conditions (Intel® Xeon® Processor Scalable Family) section of the Intel® Xeon® Processor Scalable Family, Cache Allocation Technology/Code and Data Prioritization (CAT/CDP) might see performance side effects and a reduction in the effectiveness of the CAT feature for certain classes of applications. These include cache-sensitive workloads than seen on previous platforms.

More information about Cache Allocation Technology (CAT) 
Whitepaper: Improving Real-Time Performance by Utilizing Cache Allocation Technology