Citace:
Beyond3D has learned of an upcoming specifications change to X1900 GT. The new spec lowers the clock speed by 63MHz, from 575MHz to 512MHz, while increasing the memory speed by 60MHz from 600MHz to 660MHz (1320MHz effective). A PCB redesign is also included to accomodate a fan change anticpated to produce improved accoustics, and HDCP capability is included by default on the new boards.
So, in exchange for a modest core decrease, purchasers of the new board will get faster memory, a hopefully quieter fan, and HDCP. As partners are expecting overall performance to remain pretty close, this doesn't sound like an unreasonable set of tradeoffs to be making.