No, it doesn't actually say anything about the memory bus. It does say "128-bit, studio-precision color", but that only means it can handle DX9 PS2.0 RGBA colors with it's pixel shaders (4x32 bits), which all NV3x cores can do. It's easy to get confused there, but it has nothing to do with the memory bus of the card. AFAIK they say nothing about the memory bus, they just hide the information. Irritating, isn't it?