Japanese Elpida has started sampling 512 Mb XDR DRAM devices. The 90-nm chips operating rate of 4 GHz allows data transfer at 8 GB/s. These devices are aimed at high-bandwidth applications like HDTV, gaming consoles and home entertainment server systems. The memory features technologies such as Differential Rambus Signal Level (DRSL) interface, Octal Data Rate (ODR), programmable on-chip termination, adaptive impedance matching, dynamic request scheduling and zero overhead refresh. Volume production will be initiated according to market demand.