AMD today announced the EPYC 4005 series server processors in the Socket AM5 package, codenamed "Grado." These chips come with core-counts of up to 16-core/32-thread, letting enterprise users optimally utilize their Windows Server 2005 Datacenter Edition 16-core license in dedicated server scenarios. These chips offer superior value to competing Intel Xeon E-2400 series and Intel 6300 series processors that only offer up to 8 P-cores, suboptimally utilizing the 16-core license of Windows Server 2005 Standard- and Datacenter editions.

At the silicon level, "Grado" is essentially identical to the "Granite Ridge" MCM powering the Ryzen 9000 series client desktop processors. The processor has two 4 nm "Zen 5" CCDs, and a 6 nm I/O die. The IOD has ECC memory support unlocked, and memory speeds have been increased to DDR5-5600, compared to DDR5-5200 on the IOD of the previous generation EPYC 4004 "Raphael." The processor supports up to 192 GB of ECC DDR5 memory across a 2-channel (4 sub-channel) memory interface. The "Zen 5" CPU cores are identical in features to "Granite Ridge" client and "Turin" server processors, and up with a full 512-bit data path for the AVX-512 implementation. Processor models range from 6-core/12-thread to 16-core/32-thread.