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Socket AM4 is a PGA microprocessor socket used by AMD's central processing units (CPUs) built on the Zen (including Zen+, Zen 2 and Zen 3) and Excavator microarchitectures. [1] [2] AM4 was launched in September 2016 and was designed to replace the sockets AM3+, FM2+ and FS1b as a single platform.
Socket: AM4. All the CPUs support DDR4-2933 in dual-channel mode. All the CPUs support 16 PCIe 3.0 lanes. 4 of the lanes are reserved as link to the chipset. Includes integrated GCN 5th generation GPU. L1 cache: 96 KB (32 KB data + 64 KB instruction) per core. L2 cache: 512 KB per core. Fabrication process: GlobalFoundries 14LP.
There are currently 3 generations of AM4-based chipsets on the market. Models beginning with the numeral "3" are representatives of the first generation, those with "4" the second generation, etc. In addition to their traditional chipsets, AMD offers chipsets with "processor-direct access", exclusively through OEM partners. [ 18 ]
The Wraith Prism debuted with the launch of 2nd-generation AMD Ryzen CPUs. [2] The cooler is basically an updated Wraith Max and looks very similar, featuring the same copper base, four heat pipes (albeit not making direct contact with the CPU), and a programmable RGB LED ring. In addition, the fan is transparent and is also lit via RGB LEDs.
On November 10, 2022, AMD launched the fourth generation (also known as the 9004 series) of EPYC server and data center processors based on the Zen 4 microarchitecture, codenamed Genoa. [47] Genoa features between 16 and 96 Zen 4 cores, alongside PCIe 5.0 and DDR5, designed for enterprise and cloud data center clients.
It made its debut as AMD's high-end processor brand on June 23, 1999. [1] Over the years AMD has used the Athlon name with the 64-bit Athlon 64 architecture, the Athlon II , and Accelerated Processing Unit (APU) chips targeting the Socket AM1 desktop SoC architecture, and Socket AM4 Zen (microarchitecture) . [ 2 ]
As the first largely "ground up redesign" of the Zen CPU core since the architecture family's original release in early 2017 with Zen 1/Ryzen 1000, Zen 3 was a significant architectural improvement over its predecessors; having a very significant IPC increase of +19% over the prior Zen 2 architecture in addition to being capable of reaching higher clock speeds.
This made Bulldozer a more superscalar design compared to Jaguar/Bobcat. However, due to K10's somewhat wider core (in addition to the lack of refinements and optimizations in a first generation design) the Bulldozer architecture typically performed with somewhat lower IPC compared to its K10 predecessors. It was not until the refinements made ...