Intel® Core™ Ultra Processor

Datasheet, Volume 1 of 2
Supporting Intel® Core™ Ultra Processor for U/H-series Platforms, formerly known as Meteor Lake

ID Date Version Classification
792044 12/15/2023 Public

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Document Table of Contents

Intel® Transactional Synchronization Extensions (Intel ®TSX-NI)

Intel ®Transactional Synchronization Extensions (Intel ®TSX-NI) provides a set of instruction set extensions that allow programmers to specify regions of code for transactional synchronization. Programmers can use these extensions to achieve the performance of fine-grain locking while programming using coarse-grain locks.

Intel® TSX-NI is comprised from two features: Hardware Lock Elision (HLE) and Restricted Transactional Memory (RTM).

Details on Intel® TSX-NI may be found in the Intel® 64 Architectures Software Developer’s Manual, Volume 2:

http://www.intel.com/products/processor/manuals

Note:Hardware Lock Elision (HLE) is deprecated.