Samsung unveils GDDR5 at 6GHz

Samsung released more information about the upcoming memory standard for graphics cards, the GDDR5.
Samsung has managed to run these chips at 6GHz, more than twice of what currently is available with GDDR4 chips, while operating on 1.5 volts.
These should be very hot chips, as GDDR3 already uses only 1.8v. At these kind of clocks voltage lower than 1.5v would be welcome but 6GHz is an amazing clock speed for memory, providing 24GB/s per 32-bit connection or memory chip of 16Mb*32 density.
Boards with eight of these chips would provide an astonishing amount of 192GB/s with only 256bits signaling to the memory.
Samsung will disclose more information about GDDR5 in early 2008 and stated it is aiming for the chips to be used in 50% of the graphics cards by as early as 2010.