Elpida Memory has begun sample shipments of its new 32-gigabyte
Load Reduced Dual In-Line Memory Module (LRDIMM), the DRAM
industry's highest density memory module.
The LRDIMM consists of 72 advanced 40nm process 4-gigabit DDR3
SDRAMs in a Double Density Package (DDP).
LRDIMM is a new standard for server memory modules that reduces
I/O bus capacity by buffering the I/O bus line with the memory
buffer (MB) to simultaneously enable higher system density and
JEDEC, a standardization body for the semiconductor industry,
is studying the adoption of LRDIMM standards. Elpida is
actively engaged in promoting its own standard.
Conventional Registered DIMM (RDIMM) in a two-way server system
only allows a maximum of 16 DIMM whereas LRDIMM allows up to 24
DIMM in the same system. According to Elpida, the use of 24 of
its 32-gigabyte LRDIMM represents a next-generation
768-gigabyte capacity platform, or 1.5 times that of a system
equipped with RDIMM.
Also, with a maximum a speed of 1600Mbps, which is 20% faster
than the highest RDIMM speed of 1333Mbps, Elpida's LRDIMM is
capable of meeting demand for higher densities and faster
speeds in next-generation servers and data centers.
* At 32-gigabyte the industry's highest density memory
* A maximum operating speed of 1600Mbps (also supports
* 1.35V/1.5V supply voltage
* Compliant with JEDEC memory buffer (MB) and Raw Card K
* Symmetric memory buffers maintain signal integrity
* Elpida's original heat spreader to increase cooling and
maintain reliable operation in response to the higher memory
* 40nm process 4-gigabit DDR3 SDRAM (DDP) installed
Elpida has already begun sample shipments of the new LRDIMM.
Mass production is expected to begin in the first quarter of CY