French hardware site, MadBoxPC, managed put their hands on three AMD Radeon HD graphics cards which are scheduled for release in January, 2008.
These cards are the Radeon 3450 HD (RV620 core, 55nm), Radeon 3470 HD (RV620 core, 55nm) and Radeon 3650 HD (RV635 core). Radeon 3450 HD is expected to retail for $50, Radeon 3470 HD for $60 and Radeon 3650 HD for $100.
Cards' Specs (according to MadBoxPC):
Radeon HD 3450
Core: RV620
Fab: 55nm
Core Clock: 525Mhz
Mem Clock: 400Mhz (800Mhz DDR)
Memory: 256MB DDR2
Mem Interface: 64bits
Output: Display Port (HD3450), VGA
Interface: PCIe 2.0
Radeon HD 3470
Core: RV620
Fab: 55nm
Core Clock: >600Mhz
Mem Clock: 500Mhz (1000Mhz DDR)
Memory: 256 -512MB GDDR3
Mem Interface: 64bits
Output: TV-Out, VGA, DVI-i.
Interface: PCIe 2.0
Radeon HD 3650
Core: RV635
Fab: 55nm
Core Clock: 800Mhz (XT) - 600Mhz (Pro)
Mem Clock: 1000Mhz (2000Mhz DDR)
Memory: 256MB -512MB GDDR3
Mem Interface: 128bits
Interface: PCIe 2.0