The HIS Radeon X1650XT is characterized by a 575 MHz Core clock along with a 690MHz clock for the GDDR3 memory. The effective speed of the memory, which utilizes a 128-bit interface, is the equivalent of 1380MHz. A unique aspect of the video card is HIS’ choice to use a passive cooling system making the card completely silent.

The card comes with an installation handbook, a Driver CD, and a DVD with the CyberLink DVD 4 program, the game Dungeon Siege, and three demos: Half-Life 2, RollerCoaster 3 Tycoon and Act of War: Direct Action.

The supplied accessories consist of a DVI-to-VGA connector, an S-Video composite cable, a component cable, and a single ATI Crossfire connector.

HIS designed the cooling solution of the card to be completely fanless and instead opted upon a solution comprised of entirely heatpipes. The chosen material for the portion of the heatsink that is in contact with the GPU is aluminum while the heatpipes themselves are copper. Contrary to the ASUS solution on the previous page, the HIS X1650XT does not require auxiliary power.

The price to pay for the silent cooling solution turns out to be that the card takes up two slots instead of one. Again, we have two DVI connectors and one S-Video port.

For cooling the memory chips, HIS chose to use mini-heasinks for each memory chip. A glimpse of the mini-heatsinks can be seen in the above photograph right underneath the primary heatsink.