nVidia is the first company to launch a graphics card equipped with GDDR3; the new generation of memories for graphics cards. Wtih GDDR3 you can reach higher frequencies while the memory requires lower voltage which making the heatproduction less than with regular DR-memory at the same frequencies.
What frequencies the new 5700 Ultra-cards will use with this memory is something we haven’t been told though but we have mailed nVidia asking that very question. We will return when we know more.
Read the entire pressrelease here.