Larger and heavier yes, but faster...?Larger and heavier and faster
You so need to hear a D700 with the battery pack from the D3 at full chat.![]()
Actually, if you really want to split hairs...if you lock focus down the D3 shoots at 10fps, and switch to DX mode and it's 11Sorry!
I was misinformed on the frame rate. The D700 is a whole one fps slower with the grip fitted.![]()

Also, IIRC, you only get the real fast frame rate if you're using AAs or an EL4 battery