AMD introduced the third generation of EPYC server processors, also known by the codename Milan. The new products are based on Zen 3 architecture and are able to execute up to 19% more instructions per clock (IPC) as compared to their predecessors. AMD has presented a total of 19 models of EPYC 7003-series processors. There are chips with the number of cores from 8 to 64, all with multi-threading support & ; each core processes two instruction threads simultaneously. Note that this is the first generation where AMD offered chips with 28 and 56 cores, so users have even more freedom of choice.
The base frequency of the new EPYC processors ranges from 2 to 3.7 GHz. In turn, maximum Boost speeds can reach up to 4.1GHz, although in most cases they do not exceed 4GHz. The standard TDP level ranges from 120 to 280W. Layer 3 cache capacity also varies and may be 64, 128 or 256 MB, depending on the model. Moreover, the amount of cache does not depend on the number of cores. It should be also added that L3 cache is now shared per chip & ; up to eight cores may access all 32 Mbytes, located with them on one chip.
The common features of all EPYC Milan models apart from Zen 3 architecture are eight DDR4 memory channels supporting up to 3200 MHz, and 128 PCIe 4.0 lanes. In fact, this new product does not differ from its predecessors. They are also similar in CPU socket & ; AMD continues to use familiar from the first EPYC socket SP3. Our sister site ServerNews has already prepared detailed review of new AMD EPYC Milan processor family and made tests using EPYC 7763 and EPYC 7543 examples. The material can be found here.
Recommended prices for EPYC Milan processors start from $913 and that is not the 8-core, but the chip with 16 cores. The flagship EPYC 7763 with 64 cores will cost $7890. For comparison, last generation EPYC prices ranged from $450 to $6,950. That is, the chips have not grown too much, but still noticeably.
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