A Beyond3D forum member posted a mysterious picture of two graphics
cards that could very well be engineering samples of AMD's true
next-generation Radeon HD 7900 "Tahiti" graphics cards. The final
products most probably won't look like these, with a bare red PCB, but
it does look like the reference cooler design is ready. A more important
feature in that picture is the spotting of traces for at least 11
memory chips, the 12th one (not highlighted) is apparently near the PCIe
slot interface. The presence of 12 memory chips gives rumors of Tahiti
featuring a 384-bit wide memory interface a shot in the arm. This will
be the first AMD GPU in over 5 years to feature a memory bus wider than
256-bit. The R600 Radeon HD 2900 GPU featured a 512-bit GDDR4-capable
memory interface.
source: http://www.techpowerup.com/156421/AMD-Radeon-HD-7900-Tahiti-Pictured-384-bit-Memory-Bus-Confirmed-.html
