TSX is actually relatively bare for what it offers as transactional memory. IBM's Power8 and Blue Gene are significantly robust in that area. For numbers, here

TSX is actually relatively bare for what it offers as transactional memory. IBM's Power8 and Blue Gene are significantly robust in that area. For numbers, here's some for Thread-Level Speculation [0], though simulated and not against TSX. Performance comparisons are at page 9. [0] http://www.cs.cmu.edu/~tcm/tcm_papers/isca00.pdf http://www.cs.cmu.edu/~tcm/tcm_papers/isca00.pdf