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Other articles > X86 Glossary > TSX

Transactional Synchronization Extensions (TSX- NI) is an extension to the x86 instruction set architecture (ISA) that adds hardware transactional memory support, speeding up execution of multi-threaded software through lock elision. According to different benchmarks, TSX can provide around 40% faster applications execution in specific workloads, and 4–5 times more database transactions per second (TPS). In August 2014, Intel announced a bug in the TSX implementation on current steppings of Haswell, Haswell-E, Haswell-EP and early Broadwell CPUs, which resulted in disabling the TSX feature on affected CPUs via a microcode update.


Used for : Intel Core i3, Intel Core i5, Intel Core i7, Intel Core i9, Intel Pentium, Intel Xeon