If GDDR5's going to become the de facto standard by 2010, Samsung's getting an early start with this batch. Lower power consumption and higher bandwidth. No mention of frequencies in this one.

"Samsung's GDDR5, which will be introduced at a density of 512 Mb (16Mb x 32) chips, is capable of transmitting moving images and associated data at 24 gigabytes per second (GBps)."