This week the desktop space has officially entered the 28 nm GPU era thanks to the retail release of the Radeon HD 7970. It's a significant milestone for the discrete graphics market and for AMD, but it's only the beginning as the Sunnyvale-based company is currently preparing the arrival of the Radeon HD 7950 and is planning the introduction of the first 28 nm mobile chips.

While the HD 7950 will debut this quarter, the 28 nm GPUs for notebooks will have to wait a little longer, until Q2. The upcoming mobile parts are of course based on the GCN architecture and will bring DirectX 11.1 support, as well as power, image quality and display output enhancements.

The 28 nm mobile cards will (most) likely be added to the recently-introduced Radeon HD 7000M family which also includes multiple 40 nm-based cards (7600M, 7500M, 7400M, 7300M). Look for 28 nm models to be branded Radeon HD 7700M and higher.