Qimonda can currently produce 512MB (16MBx 32) GDDR5 chips with speeds of 3.6GHz, 4GHz, and 4.5GHz. GDDR5 memory requires more complex circuit boards than the current GDDR3. The new memory type is expected to be important in the war between ATI and Nvidia; it has double the bandwidth of the current GDDR3. Qimonda has not released details on pricing, but GDDR5 is expected to be more expensive than GDDR3/GDDR4.
Hynix Semiconductor and Samsung Electronics are also planning to produce GDDR5 memory.