Date: April 26th, 2010
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 Turbo version of ATI's HD5830.
First off we start at this videocard's VPU. HIS' use of the 40nm manufactured RV870 core which is usually complimented with a stock clock of 800Mhz core and 1000Mhz DDR5 memory is bumped up to a conservative overclock of 840Mhz core and 1100Mhz memory and is set as the stock clock rate for this card.
The amount of shader pipeline and clock rates is the main difference other than the core capabilities between it and the HD5870 and the HD5850. The HD5870 has 1600 shader pipelines whereas the HD5830 has only 1120 with the HD5850 falling exactly in the middle. In addition the HD5870 will have an overall higher peak memory bandwidth due to its higher memory clock at 153.6Gb/sec, but the HD5850 and the HD5830 are exactly the same at 128Gb/sec.
The iCooler attached to this videocard is not supported by any sort of heatpipe and uses a directly cooled larger plate which is attached to a huge aluminum heatsink. The center mounted 80mm fan pushes air down and away form the center and uses both ends of the card as an exhaust. This means only a percentage of the warm air will be exhausted directly out of the case. A portion will be vented inside of the case and therefore will contribute to internal case temperatures. Mind you, with proper internal case ventilation, this shouldn't be a huge concern.
The 80mm fan is very quiet and is barely detectable during idle and load testing. In fact, I wouldn't have minded the fan speed ramp up to be a little more aggressive when this card is being fully utilized during testing. You could definitely tell that this card was being tested and getting hot when the acrid smell of warm electronic components started to partially fill the testing room. Either way, it was never unstable other than when trying to find the overclocking ceiling. The warmest temperature I witnessed was only 65c during full DX11 testing with 8X AA and 16x AF at 1920x1200 resolution. Turning the fan up only 15% dropped those temperatures to 55c in short order.
The back of the card is completely void of any obstruction to interfere with any sort of upper motherboard components and facilitated an easy install. As you can see, this cooling solution was held in place with no less than 9 screws and insures that there won't be anyway that this cooler will be separating away from any of the components it is cooling.