DDR333 with 166 MHz now officially standard
The JEDEC (Joint Electronics Devices Engineering Council) has agreed to recognize DDR333 memory as an industry standard. This means that the corresponding chips can now be produced without any problems, and the new memory chips have a specification of 166 MHz instead of the previously common 133 MHz. The chips are delivered in PC2700 modules and a new housing called MicroDIMM.
These housings should be a little smaller than previous. At the moment there are PC1600 and PC2100 DDR RAM modules on the market that are equipped with DDR200 (100 MHz) or DDR266 (133 MHz) memory chips. These 'only' offer a transfer rate of 1.6 GByte/s or 2.1 GByte/s. The new PC2700 modules, on the other hand, offer a data transfer rate of 2.7 GByte/s. The voltage requirement of the new modules is not increased and is still 2.5V. However, it is unclear why the new memory was set as the standard, although previous and probably future systems are only operated at 133 MHz. JEDEC hardly did this to please all overclockers. Today's systems use no more than 2.1 Gbyte/s of data transfer at 133 MHz.