ATI's RS690 GPU uses the R400 architecture and is made using a 80 nm production process. With a die size of 73 mm² and a transistor count of 120 million it is a very small chip. RS690 supports DirectX 9.0b (Feature Level 9_2). Modern GPU compute technologies are not available. It features 4 pixel shaders and 2 vertex shaders, 4 texture mapping units and 4 ROPs. Due to the lack of unified shaders you will not be able to run recent games at all (which require unified shader/DX10+ support).
R420 Core
Codename: Heman
Graphics/Compute: GFX2
Display Core Engine: 2.0
Smart Shader HD
Smooth Vision HD
TruForm 2.0
Hyper Z HD
Video Shader HD
3Dc Compression
Programmable pixel&vertex pipelines
RS690 is embedded with a 690G Chipset.
RS690C is embedded with a 690G Chipset.
RS690M is embedded with a M690 Chipset.
RS690MC is embedded with a 690V Chipset.
RS690MC is embedded with a M690V Chipset.
RS690T is embedded with a M690T Chipset.