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Some Zen-based models such as {{amd|Ryzen Threadripper}} which are based on a two-Zeppelin configuration can have large variations in performance depending on how the software was designed to make use of the available memory. Threadripper offers two different memory access modes: | Some Zen-based models such as {{amd|Ryzen Threadripper}} which are based on a two-Zeppelin configuration can have large variations in performance depending on how the software was designed to make use of the available memory. Threadripper offers two different memory access modes: | ||
− | * UMA ( | + | * UMA (Uniform Memory Access) or Distributed Mode |
− | * NUMA ( | + | * NUMA (Non-uniform Memory Access) or Local Mode |
The difference between the two modes is how access to the four memory controllers is done. | The difference between the two modes is how access to the four memory controllers is done. |
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) + |