That is the name
ATI won't be using X in its Rx6xx brand names. The new Radeon generation
will be branded Radeon HD 2000 series.
The R600XT or Radeon HD 2900XT is actually a 512 MB GDDR 3
card and the XTX will come later.
All the Radeon Rx6xx chips will be known as ATI Radeon HD
2000 Series.
