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HIS Radeon HD 4850 IceQ 4 Turbo X - Ice Cold Baby

By Kenny Yeo - 2 Oct 2008

The HIS Radeon HD 4850 IceQ 4 Turbo X

The HIS Radeon HD 4850 IceQ 4 Turbo X

The first thing that strikes you about the card is its IceQ 4 cooler. Looking around, the cooler seems to be proprietary. Unlike the IceQ 2, which was actually from Arctic Cooling, we couldn't find anything on the IceQ 4 that would suggest it's from a third party.

According to HIS, there's actually two heatsinks on the card. One dedicated to the GPU itself and another just for the memory. They are isolated so that heat cannot be transferred from one component to the other. The fan of the IceQ 4 is special too, in that it is bi-directional, meaning it can draw air from both sides. HIS claims this bi-directional fan will improve cooling performance when the cards are in CrossFireX mode. Unfortunately, since HIS only sent us one card, we couldn't confirm whether this was true or not. However, what we can confirm is that the fan is spectacularly silent, so much so that we had to strain our ears to listen because the fan of the CPU cooler was drowning out any noise from the IceQ 4 fan. In fact, there were even times we thought the fan had stopped running altogether!

The reference HD 4850 that we tested earlier was one hot card. Clearly, the reference single slot cooler needs help. How will the IceQ 4 hold up? Read on to find out.

The HIS Radeon HD 4850 IceQ 4 Turbo X sports an elaborate heatsink that covers almost the entire card. Note the numerous fins and the thick heat pipes.

The HIS Radeon HD 4850 IceQ 4 Turbo X comes with two HDCP compliant DVI ports and a 7-pin mini-DIN. Warm air from the card is forced out through the vents above the ports.

Under the thick heat pipes are two CrossFire connectors, allowing for a maximum of four HD 4850 to be setup in CrossFireX.

The HIS Radeon HD 4850 IceQ 4 Turbo X draws its power through a 6-pin connector. ATI recommends a PSU with a rating of at least 450W for a single card setup. For a dual CrossFireX setup, a PSU with a 550W rating or more is required.

Apart from the elaborate cooler, HIS has also modified other aspects of the card that are invisible to the eye. The clock speeds of the HIS Radeon HD 4850 IceQ 4 Turbo X stands at the 685MHz for the core and 2200MHz for the memory, an increase of 60/200MHz which is not unique by any means. Nevertheless, this should give us a slight boost in performance.

Here's what the HIS Radeon HD 4850 IceQ 4 Turbo X comes with:-

  • Driver CD
  • Installation guide
  • DVI-to-HDMI adapter
  • DVI-to-VGA adapter
  • CrossFire bridge
  • S-Video cable