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Date: November 5th, 2009
Article by: Nathan Glentworth (Owner / Head Editor)
Product was submitted by: HIS
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PRODUCT PICTORIAL & WALKTHROUGH


Let's take a virtual walk around HIS's iCooler X4 version of the HD4890. As mentioned previously, this isn't a stock reference card.



First off we start at this videocard's VPU. HIS's use of the 55nm manufactured RV790 core is complemented with a stock clock of 850Mhz core and 975Mhz DDR5 memory. This is the industry standard for most HD4890 based videocards so this card has not been pushed to see its limits yet. Will it yield a great overclock or will this cooler be all flash will no substance. The results are in the upcoming pages.


 

 

 

 

 

 

 



As for the cooler, you see HIS uses their iCooler x4 copper heatpipe cooler which is quiet during idle and load benchmarking conditions. With four copper heatpipes being cooled by a large aluminum heatsink and a 80mm fan, it is quite an efficient cooler. The one thing I would have liked to have seen is the cooling of the memory modules. It is key to cool the VPU core along with the memory and seeing the memory modules are covered with little to no airflow, the GDDR5 modules might not have the life span that people might expect.



The back of the card is simple and unobstructed so that it won't interfere with any motherboard northbridge cooling solutions. Direct temperature testing with an infrared thermometer resulted in a temperature of only 52c on the portion of the card directly under the VPU core.



The power supplied through the PCI Express slot alone will not power this videocard. You will have to use an 8 pin and a 6 pin molex connector from your power supply or you can use the supplied adapters in the hardware kit. Just make sure you have a decent name brand power source to supply this card with good clean power.

 

 


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