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Zen 4 is the name for a CPU microarchitecture designed by AMD, released on September 27, 2022. [ 4 ] [ 5 ] [ 6 ] It is the successor to Zen 3 and uses TSMC 's N6 process for I/O dies, N5 process for CCDs , and N4 process for APUs. [ 7 ]
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.
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 ...
Out-of-order superscalar, register renaming, 4-way pipeline decode, 6 instruction per cycle, branch prediction, L3 cache ARM Cortex-A710: 2021 10 ARM Cortex-X1: 2020 13 5-wide decode out-of-order superscalar, L3 cache ARM Cortex-X2: 2021 10 ARM Cortex-X3: 2022 9 ARM Cortex-X4: 2023 10 AVR32 AP7: 7 AVR32 UC3: 3 Harvard architecture Bobcat: 2011
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Microarchitecture Version Notes Date Combo-AM4v2 Zen 3. Zen 2 Zen+ Zen 1.2.0.Cc security fixes (Sinkclose/SMM Lock Bypass) in Ryzen 3000 September 2024 1.2.0.Cb security fixes (Sinkclose/SMM Lock Bypass AMD-SB-7014) in Ryzen 4000/5000 August 2024 1.2.0.Ca security fixes for Ryzen 4000G Renoir (AMD-SB-7008) April 2024 1.2.0.C security fixes ...
The same microarchitecture was also announced to be used for an upcoming flagship Samsung Exynos SoC, [38] later introduced in January 2022 as Exynos 2200, utilizing a custom Xclipse 920 GPU with 3 workgroup processors. [39] [40] An RDNA 2 integrated GPU with 2 compute units is included in the I/O die on AMD's Zen 4-based Ryzen 7000 Series CPUs.
On November 10, 2022, AMD launched the fourth generation of Epyc server and data center processors based on the Zen 4 microarchitecture, codenamed Genoa. [52] At their launch event, AMD announced that Microsoft and Google would be some of Genoa's customers. [53] Genoa features between 16 and 96 cores with support for PCIe 5.0 and DDR5.