Elpida has just announced that they have developed the first DDR2-800 128 MB chip. This 100 nm chip is able to reach 400 MHz and a transfer rate of 800 Mbits per second and per pin thanks to the DDR mode.
PC2-6400 memory modules will be equipped with these chips. They will provide a bandwidth of 12.8 GB /s in double channel with 1 KB=1000 bytes (like manufacturers do) or 11.9 GB /s with 1 KB = 1024 bytes.
It is however also important to notice that for the time being none of the chipsets on the market is compatible with the DDR2-800. The first chipset compatible will be released in a few months. The DDR2-667, already in shops, isn’t even really compatible with current chipsets and is still under validation by the JDEC.
The DDR2-800 will probably be the last DDR2 evolution. The next evolution should be the DDR3-800 and then the 1066 in 2006. The 1066 should only be a step for manufacturers. Their objective for this technology is to reach the DDR3-1600.
