Beyond3D has taken a look at three GeForce 7800 offering from Leadtek, the PX7800 GT TDH Extreme, PX7800 GTX TDH and the PX7800 GT TDH Extreme

In comparison, the GTX Extreme's heatsink is a far more substantial affair. It is "two slot" design, meaning that one cannot place another other PCI/PCI Express device in a slot immediately below the one used by this graphics card. Unlike the other two, this heatsink has the fan directly over the processing chip but to compensate for this, it also has a large copper plate over which 4 large conducting heat pipes run.

Leadtek GeForce 7800 Roundup