GDDR4 - History

History

  • On October 26, 2005, Samsung announced the development of 256-Mib GDDR4 memory running at 2.5 Gbit/s. Samsung also revealed plans to sample and mass-produce GDDR4 SDRAM rated at 2.8 Gbit/s per pin.
  • On February 14, 2006, Samsung announced the development of 32-bit 512-MiBit GDDR4 SDRAM capable of transferring 3.2 Gbit/s per pin, or 12.8 GB/s for the module.
  • On July 5, 2006, Samsung announced the mass-production of 32-bit 512-Mibit GDDR4 SDRAM rated at 2.4 Gbit/s per pin, or 9.6 GB/s for the module. Although designed to match the performance of XDR DRAM on high-pin-count memory, it would not be able to match XDR performance on low-pin-count designs.
  • On February 9, 2007, Samsung announced mass-production of 32-bit 512-Mbit GDDR4 SDRAM, rated at 2.8 Gbit/s per pin, or 11.2 GB/s per module. This module will be available for the latest version of AMD cards.
  • On February 23, 2007, Samsung announced 32-bit 512-Mibit GDDR4 SDRAM rated at 4.0 Gbit/s per pin or 16 GB/s for the module and expects the memory to appear on commercially-available graphics cards by the end of year 2007.

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