If the 4 TB maximum in the current EPYC series seems like a lot, it will be hard to say anything about the new generation.
In the spring of this year, we wrote about data leaks from the AMD Genoa platform and later information about the system from documents stolen from Gigabyte. There is relatively much to know about development, but ComputerBase’s recent report the maximum supported memory capacity is no longer a secret.
It has long been known that the Genoa platform processor will receive a 12-channel memory controller that supports DDR5 memories running at 5.2 GHz effective clock speed. However, a new feature is that the maximum capacity per channel for 3DS RDIMMs can be 1 TB, which means that a total of 12 TB of system memory can be associated with an enclosure. It is important at the same time, so in this case the maximum effective clock is reduced to 4 GHz, but this is still acceptable in many markets.
(source: Computer base) [+]
The 5.2 GHz effective clock is available with LRDIMM modules, in which case 256 GB per channel can be used, for a total capacity of 3 TB. Further combinations can be found in the table above.
Source: Hírek és cikkek – PROHARDVER! by prohardver.hu.
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