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For those processors that have only one pipeline per core, interleaved multithreading is the only possible way, because it can issue at most one instruction per cycle. Simultaneous multithreading (SMT): Issue multiple instructions from multiple threads in one cycle. The processor must be superscalar to do so.
The Ryzen family is an x86-64 microprocessor family from AMD, based on the Zen microarchitecture.The Ryzen lineup includes Ryzen 3, Ryzen 5, Ryzen 7, Ryzen 9, and Ryzen Threadripper with up to 96 cores.
Included in the Ryzen and Epyc CPU lines. AMD Zen Family 17h – first generation Zen architecture based on 14 nm process. First AMD architecture to implement simultaneous multithreading and Infinity Fabric. AMD Zen+ Family 17h – revised Zen architecture (optimisation and die shrink to 12 nm).
The modular architecture consists of multithreaded shared L2 cache and FlexFPU, which uses simultaneous multithreading. Each physical integer core, two per module, is single threaded, in contrast with Intel's Hyperthreading, where two virtual simultaneous threads share the resources of a single physical core. [10] [11]
Multithreading, multi-core, 8 fine-grained threads per core of which 2 can be executed simultaneously, 2-way simultaneous multithreading, 16 cores per chip, out-of-order, 16-way associative shared 8 MB L3 cache, hardware-assisted cryptographic acceleration, stream-processing unit, out-of order execution, RAS features, 16 cryptography units per ...
The server IO die is able to serve as a hub to connect up to eight 8-core chiplets, while the IO die for Matisse is able to connect up to two 8-core chiplets. These chiplets are linked by AMD's own second generation Infinity Fabric, [27] allowing a low-latency interconnect between the cores and to IO. The processing cores in the chiplets are ...