Core: G86 450MHz OR G98 650MHz 128bit Shader: 900MHz
Memory: 256/512MB DDR2 800MHz 64bit
Unified Shaders: 16 (v 4.0) DirectX: 10
Memory bandwith: 6,4 GB/s
Pixel write speed: 3600 MPixel/s Texel write speed: 3600 MTexel/s
Note: This cards exists in two versions. From wiki:
At the end of 2007 NVIDIA released a new GeForce 8400 GS based on the G98 (D8M) chip. It is quite different from the G86 used for the "first" 8400 GS, as the G98 features VC-1 and MPEG2 video decoding completely in hardware, lower power consumption, lowered 3D-performance and a smaller fabrication process. The G98 also features dual-link DVI support and PCI Express 2.0. G86 and G98 cards were both sold as "8400 GS", the difference showing only in the technical specifications.