New information about Rambus XDR2 memory
News about the innovative memory producer are rare and since the introduction of Sony's Playstation 3 (256 MiByte XDR) it has gone rather quite. But now Rambus is again taking part in the struggle for the performance crown with the XDR2 memory standard.
With the introduction of the XDR2 technology Rambus directly targets the competition from the GDDR5 camp. The new architecture is advertised with doubled bandwidth and about 30 pecent reduction of the power consumption. While GDDR5 currently reaches transfer rates of 6 Gbit/s, XDR2 offers 12.8 Gbit/s. With an 32 Bit interface this would equal a bandwidth of 51.2 GiByte/s. The packing factor has, with up to four Gigabit, twice the size of GDDR5.
With the XDR2 Rambus has an excellent technology at hand that beats GDDR5 by far in technical aspects. But this is no guarantee for a success on the memory market. Given the many patent lawsuits against other big companies that caused quite a stir in the past, Rambus actually hasn't made many friends recently. Furthermore we will have to wait if Rambus can offer the technology at reasonable prices. The current prices reveal how highly competitive the memory market is.