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=== Simultaneous MultiThreading (SMT) === | === Simultaneous MultiThreading (SMT) === | ||
− | Perhaps the single biggest enhancement to Zen is the addition of full-fledged [[simultaneous multithreading]] (SMT) support | + | Perhaps the single biggest enhancement to Zen is the addition of full-fledged [[simultaneous multithreading]] (SMT) support. This is a departure from AMD's previous lightweight (and largely ineffective and to some degree misleading) {{amd|Clustered Multithreading}} (CMT). Zen is a properly simultaneous multi-threaded machine capable of handling two threads of execution throughout the entire machine. Below is a breakdown of how the various core components work under SMT: |
[[File:amd zen hc28 smt.png|400px|left]] | [[File:amd zen hc28 smt.png|400px|left]] |
Facts about "Zen - Microarchitectures - AMD"
codename | Zen + |
core count | 4 +, 6 +, 8 +, 16 +, 24 +, 32 + and 12 + |
designer | AMD + |
first launched | March 2, 2017 + |
full page name | amd/microarchitectures/zen + |
instance of | microarchitecture + |
instruction set architecture | x86-64 + |
manufacturer | GlobalFoundries + |
microarchitecture type | CPU + |
name | Zen + |
pipeline stages | 19 + |
process | 14 nm (0.014 μm, 1.4e-5 mm) + |