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Zen 4c is a variant of Zen 4 featuring smaller Zen 4 cores with lower clock frequencies, power usage, reduced L3 cache per core, and is intended to fit a greater number of cores in a given space. Zen 4c's smaller cores and higher core counts are designed for heavily multi-threaded workloads such as cloud computing .
Epyc server CPUs with Zen 4, codenamed Genoa, were officially unveiled at AMD's Accelerated Data Center Premiere Keynote on November 8, 2021, [37] and released a year later in November 2022. [38] They have up to 96 Zen 4 cores and support both PCIe 5.0 and DDR5. Furthermore, Zen 4 Cloud (a variant of Zen 4), abbreviated to Zen 4c, was also ...
AMD Zen 4 Family 19h – fourth generation Zen architecture, in 5 nm process. [5] Used in Ryzen 7000 consumer processors on the new AM5 platform with DDR5 and PCIe 5.0 support. Adds support for AVX-512 instruction set. AMD Zen 5 Family 1Ah – fifth generation Zen architecture, in 4 nm process. [6] Adds support for full-width AVX-512 pipeline.
Models with Zen 4c cores (codenamed Phoenix 2) support 14 PCIe 4.0 lanes, while models without them support 20 lanes. 4 of the lanes are reserved as link to the chipset. Includes integrated RDNA 3 GPU. Includes XDNA AI Engine (Ryzen AI) on models without Zen 4c cores. Fabrication process: TSMC 4 nm FinFET.
The ROG Ally implements an AMD APU, based on AMD's Zen 4 and RDNA 3 architectures. Two different models of the ROG Ally were released, one with a Ryzen Z1 processor and another with a Ryzen Z1 Extreme. [9] The Z1 CPU runs a six-core/twelve-thread unit and the Z1 GPU runs on four compute units with a total estimated performance of 2.56 TFLOPS. [10]
Models with Zen 4c cores (codenamed Phoenix 2) support 14 PCIe 4.0 lanes, while models without them support 20 lanes. 4 of the lanes are reserved as link to the chipset. Includes integrated RDNA 3 GPU.