Updated 28 May, 2012, 5:14 pm IST

Zebronics 7900 GS

03 Jan, 2007, 12:59 pm IST | by Jayesh Mansukhani | Graphics Cards

The year 2006, saw a lot of product releases in the field of graphics with multiple combinations of clockspeed, memory speeds and bandwidth. One of the more outstanding graphic releases was the Nvidia 7900 GS, which retained the strength of the 7900 family of cards and yet delivered excellent performance. Targeted at the mainstream market, the 7900 GS hit the sweet spot between performance and cost.

The product we are reviewing today is the Zebronics 7900 GS. Zebronics is a leading Indian reseller, which often rebadges products from other manufacturers and sells it under its own brand-name. Have they done the 7900GS justice? Read on to find out.

The 7900GS chipset really needs no introduction. Like the 7900GT it retains PureVideo/PureVideo HD support for XHD resolutions (2560x1600), Shader Model 3.0 support, HDR, transparency anti-aliasing and SLI. This is virtually the whole feature pack of the G70 GPU series with no important feature having been left out. This is a totally un-heard of move when one keeps in mind that this is a lower-end mainstream offering.

Specification Table

�	Nvidia 7900GS	Nvidia 7900GT
DirectX version	9.0C	9.0C
Shader Model	3.0	3.0
Vertex shaders	7	8
Pixel shaders	20	24
Unified shaders	-	-
GPU clock frequency	450	450
Memory clock frequency	660	660
Memory	256	256
Memory-bus	256	256
PEG connections	1	1

As you can see the 7900 GS is identical to the 7900 GT in clock speeds. The differences introduced have been the elimination of vertex pipeline and four pixel pipelines. This translates to about 20 percent performance loss as compared to the 7900 GT and this will be clearly illustrated in the test's we have carried out on the card.

The test unit we received from Zebronics was a stock edition in terms of memory and clock speeds. The Zebronics 7900 GS ships on a plain red PCB. While retaining the 7900GS' stock speeds the developers have chosen to modify the HSF. This will allow you to overclock the card considerably and adds a layer of stability to the card as it dissipates the heat generated by the card more efficiently. Though the HSF has been modified, it does nothing for the physical appearance of the card. The HSF is an ugly black unit, which unlike offerings from other manufacturers looks like a cut-paste job. It’s positioning and symmetrical flow is totally at odds with the card’s PCB. This spoils the overall appearance of the card making it look just plain bad.

Tags: Zebronics , 7900GS , Asus , 7900GT , DirectX9

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