On October 26, 2005, Samsung announced the development of 256-Mbit GDDR4 memory running at 2.5 Gbit/s.
On February 14, 2006, Samsung announced the development of 32-bit 512-Mbit GDDR4 SDRAM capable of transferring 3.2 Gbit/s per pin, or 12.8 GB/s for the module [REF].