AMD today introduced the EPYC 4004 line of server processors in the Socket AM5 package. These chips come with up to 16 "Zen 4" CPU cores, a 2-channel DDR5 memory interface, and a 28-lane PCIe Gen 5 I/O, and are meant to power small-business servers, as well as cater to the dedicated web-server hosting business that generally attracts client-segment processors. This is the exact segment of market that Intel addresses with its Xeon E-2400 series processors in the LGA1700 package. The EPYC 4004 series offers a superior support and warranty regime compared to client-segment processors, besides ECC memory support, and AMD Secure Processor, and all of the security features you get with Ryzen PRO 7000 series processors for commercial desktops.

AMD's offer over the Xeon E-2400 series is its CPU core count of up to 16, which lets you fully utilize the 16-core limit of the Windows 2022 Server base license. The EPYC 4004 series is functionally the same processor as the Ryzen 7000 "Raphael" except for its ECC memory support. This chip features up to two 5 nm "Zen 4" CCDs with up to 8 cores, each; and an I/O die that puts out two DDR5 memory channels, and 28 PCIe Gen 5 lanes. Besides today's processor launch, several server motherboard vendors are announcing Socket AM5 server boards that are rackmount-friendly, and with server-relevant features.The AMD EPYC 4004 series consists of eight individual processor models based on CPU core counts and TDP. The lineup begins with the 16-core/32-thread EPYC 4564PX, with 4.50 GHz base frequency, up to 5.70 GHz boost, and a 170 W TDP for superior boost frequency residence. This chip is priced at $699, which isn't all that pricier than a Ryzen 9 7950X client processor. The EPYC 4584P is launching at the same $699 price, with the same 16-core/32-thread muscle, but lower 4.20 GHz base frequency, and a significantly lower 120 W TDP. Next up, is the EPYC 4464P, a 12-core/24-thread chip with 3.70 GHz base frequency, 5.40 GHz maximum boost, and a 65 W TDP. AMD is pricing this chip at $429. The 4484PX is a faster 12-core chip, with 4.40 GHz base frequency, 5.60 GHz maximum boost, but with a 120 W TDP, and a $599 price.The 8-core/16-thread lineup consists of the EPYC 4364P and the 4344P. The former ticks at 4.50 GHz base and 5.40 GHz maximum boost, with a 105 W TDP and a $399 price; while the latter does 3.80 GHz base, 5.30 GHz maximum boost, with a 65 W TDP, and a $329 price. The EPYC 4244P is a 6-core/12-thread chip running at 3.80 GHz base, 5.10 GHz boost, 65 W TDP, and a $229 price. At the tail end is the EPYC 4124P, a 4-core/8-thread chip that ticks at the same 3.80/5.10 GHz speeds as the 4244P, with the same 65 W TDP, but at a $149 price.The company also presented several performance numbers for its EPYC 4004 series, where the series shows significant performance advantage over the Xeon E-2400 series in several server performance benchmarks. The real ace here is AMD's core count, which scales all the way between 4 and 16, letting you maximize your Windows 2022 Server base license, or the 16-core SQL Server license.

The complete slide deck follows.