We were informed that AMD's RV635, 55 nanometre chip scheduled for Q1 2008 will be branded as the Radeon HD 2650.
This could mean that this PCIe 2.0 GPU with DirectX 10.1 support will end up on the market with this xx50 name and that it will be faster than the HD 2600 XT clocked at 800MHz.
As always, the name can change, but this is the first time we've heard this one.
The low end 55 nanometre chip that is set to replace the RV615 chip will be branded as the Radeon HD 2500. It looks like AMD might just like the performance that it is getting out of these chips so it really dares to upgrade the name by a 100 points.
This chip is a 55 nanometre low end part that supports PCIe 2.0, DirectX 10.1 and Display Port, so AMD expects that this one will be quite popular with OEMs.