DDRFormaten

DDRFormaten is a term used in Dutch-language discourse to describe the formats, generations, and form factors of DDR memory technology. DDR memory is a class of synchronous DRAM that transfers data on both the rising and falling edges of the clock signal, effectively doubling data throughput compared with single data rate memory. The term DDRFormaten commonly encompasses five main generations: DDR, DDR2, DDR3, DDR4 and DDR5. Each generation introduces improvements in speed, power efficiency, and memory density, typically accompanied by changes in signaling voltage and memory-cell design.

In addition to generation, DDR formats include form factors and buffering types. Form factors refer to the physical package of the memory module, with DIMM used for desktops and SODIMM for laptops and small-form-factor systems; other variants such as MicroDIMM appear in some devices. Server-specific variants include UDIMM (unbuffered), RDIMM (registered), and LRDIMM (load-reduced), which differ in buffering and reliability characteristics.

Compatibility notes are an important part of DDRFormaten. Motherboards specify supported generations and form factors, and a module designed for one generation may not be compatible with a motherboard of another generation due to differences in pinout, voltage, and timing. Physical keying generally prevents incorrect installation, but electrical compatibility must also be observed.

Governance and standards are maintained by the JEDEC Solid State Technology Association, which publishes the specifications that define DDR generations and their module formats. Memory vendors implement modules in accordance with these standards. See also DRAM, JEDEC, and memory modules.