1. GDDR5 memory

2.use 512-bit memory bus

3. To provide 280 GB / sec bandwidth of about (higher than RV870)

4. GM is now calculated to be 2.2 times higher than the GT200

5.1700MHz frequency shader

Bold guess 6.die size

Source:
http://translate.google.com/translat...hl=en&ie=UTF-8

Well, seems like some new info about GT300.
2.2X faster than GTX280? If true that would be an another great GPU from NVIDIA I wonder if there will be some major architecture improvements and changes too.

Regards