SK Hynix showed some new memory modules at the Intel InnovationON 2022 event, including 48GB and 96GB specifications, of course, there are common 32GB, 64GB, and 128GB densities, and the data rate of these products are DDR5-5600 and DDR5-6400.
The company has consumer-grade DDR5 in standard DIMM and SODIMM form factors, and this server memory exhibits many secrets that the average user doesn’t know about, such as this DDR5 server memory is not binary (i.e. 1, 2, 4, 8, 16, 32, 64, 128GB).
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There are three main types of memory (DIMM) currently used in the server field – UDIMM, RDIMM, and LRDIMM. SK Hynix’s RDIMM is called Registered DIMM, which is a dual in-line memory module with registers.
RDIMM adds a register to the memory module for transmission, which is located between the CPU and the memory particles, which not only reduces the distance of parallel transmission but also ensures the effectiveness of parallel transmission. RDIMMs are easier to increase in capacity and frequency than UDIMMs due to their high register efficiency.
Hynix didn’t show 8GB and 16GB modules at the show because they said 32GB would be the new mainstream-grade starting capacity. In addition, there are foreign media that there may be suppliers launching 192GB modules in the future, and Micron and Samsung also have 48GB and 96GB DDR5 RDIMMs, although they did not take them out at the show.
Moreover, the sources said that the exhibit is for memory used in server products, so it is unlikely to be XMP or overclocked SPD, but the JEDEC standard that the processor can automatically match. This suggests that DDR5-5600 (JEDEC standard) may be the standard memory speed supported by the processor, and some (or all) models also support DDR5-6400.
Hynix exhibited DDR5-5600 RDIMMs with a maximum size of 256GB this time, which means that each socket of the server can achieve a memory size of 4TB (2 RDIMMs per channel).
