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Socket AM4
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<p>Socket AM4 is a <a href="/facts/Pin_grid_array/K6VlYgrv">PGA</a> <a href="/facts/Microprocessor_socket/ndWcsnq6">microprocessor socket</a> used by <a href="/facts/AMD/CB1G7QTb">AMD</a>'s <a href="/facts/Central_processing_units/Jxp1bqMV">central processing units</a> (CPUs) built on the <a href="/facts/Zen_(microarchitecture)/AjBvqDT7">Zen</a> (including <a href="/facts/Zen%252B/1bJfQtRR">Zen+</a>, <a href="/facts/Zen_2/pdL7I80c">Zen 2</a> and <a href="/facts/Zen_3/szGTAfyB">Zen 3</a>) and <a href="/facts/Excavator_(microarchitecture)/Bzj9WKGV">Excavator</a> microarchitectures. </p><p><i>AM4</i> was launched in September 2016 and was designed to replace the sockets <a href="/facts/AM3%252B/C1LDyTfR">AM3+</a>, <a href="/facts/Socket_FM2%252B/GQlcTMJW">FM2+</a> and <a href="/facts/Socket_FS1b/43Q9guVD">FS1b</a> as a single platform. It has 1331 <a href="/facts/Lead_(electronics)/nW8ICkYs">pin</a> slots and is the first from AMD to support <a href="/facts/DDR4_SDRAM/70r37baX">DDR4 memory</a> as well as achieve unified compatibility between <a href="/facts/High-end/WGfwoF5a">high-end</a> CPUs (previously using <a href="/facts/Socket_AM3%252B/C1LDyTfR">Socket AM3+</a>) and AMD's lower-end <a href="/facts/AMD_Accelerated_Processing_Unit/hdApEUQw">APUs</a> (on various other sockets). In 2017, AMD made a commitment to using the AM4 platform with socket 1331 until 2020. <a href="/facts/Socket_AM5/x4zuI5Ck">AM5</a> succeeded the AM4 platform in late 2022 with the introduction of the <a href="/facts/Ryzen_7000/0hKNcAra">Ryzen 7000</a> series, however, AMD has continued to release new CPUs for AM4 even after the release of AM5. </p>