http://www.brightsideofnews.com/news/20 … 0-4gb.aspx
GG, nVidia, might as well file for bankruptency now.The clocks on this "HD5990" are 850 MHz [realistically, 853 MHz] and 1200 MHz QDR for the 4GB of GDDR5 memory. Grand total bandwidth of the board is 307.2 GB/s - just like the Ares we described earlier. However, unlike ASUS HD 5970 Ares, Sapphire didn't physically enlarge the product - so the PCB is of standard height and should have no clearance issues even in narrow cases. If you can fit an HD5970, you can fit this board.