The new Radeon HD 4830 and 4860 are engraved at 40 nm to dramatically reduce power consumption while allowing performance gain, especially for the high-end model with its 640 shader units.
On its side, NVidia unveiled 4 cards:
The GeForce GTX 280 features 128 computing cores, the 260M model has 112, while the 160M and the 150M only 32. All cards can sport up to 1 GB of VRAM. NVidia claims that those cards can be up to 50% faster than the previous generation.
For all those figures and claims, one will need to have to test with those GPU installed in computers.
