Stefan Mileschin

Micron representatives showcased new products at last week's NVIDIA GTC event—one eye-catching DIMM is all set for deployment within next-generation servers. Tom's Hardware spent some time at Micron's booth—they found out that the "Tall Form Factor" 256 GB DDR5-8800 Multiplexer Combined Ranks (MCR) DIMM is being prepared for future enterprise processor platforms, including Intel's Xeon Scalable "Granite Rapids" family. A lone "tall" prototype module was exhibited, but company representatives indicated that standard height MCRDIMMs are in development. Tom's Hardware found out that these will compact enough to fit in 1U-sized server systems. According to their in-person experience: "(Micron's) 256 GB MCRDIMMs are based on monolithic 32 Gb DDR5 ICs, but the tall one places 80 DRAM chips on both sides of the module, whereas the standard one uses 2Hi stacked packages, which means that they run slightly hotter due to less space for thermal dissipation. In any case, the tall module consumes around 20 W, which isn't bad as Micron's 128 GB DDR5-8000 RDIMM consumes 10 W at DDR5-4800."

https://www.techpowerup.com/320852/m...5-8000-mcrdimm