<< Where did you hear all this?:Q
Thanks Rand. >>
XBit Labs, Inquirer, AnandTech, AcesHardware, JC's News, Tom's Hardware, Digit-Life, ATi press releases, etc etc.
It's information gathered from a number of different sources, put together to get a gauge of what the most likely situation is.
FWIW the supposed specs of the aforementioned cards are-
R8500XT: 128MB DDR SDRAM, 300MHz core clock, 300MHz mem clock.
R8700: 64MB DDR SDRAM, 350MHz core clock, 275MHz mem clock.
R8800: 128MB DDR SDRAM, 350MHz core clock, 300MHz mem clock.
It's also noteable that at least the R8800 should be using BGA DDR DRAM.
Rumours release dates have varied wildely among different sources so it's very difficult to guess with any accuracy when they might be available.
The only semi-reliable information on availablility is that the R8700/8800 should be widely available to software developers and ATi's third party developers by the beginning of April.