The NVIDIA GeForce 7900 GS: A Closer Look
by Josh Venning on September 19, 2006 5:00 AM EST- Posted in
- GPUs
The Cards
We've recently looked at the NVIDIA GeForce 7900 GS and its architecture. To recap, the 7900 GS has identical clock speeds to the 7900 GT, but with one less vertex pipeline and four fewer pixel pipelines. NVIDIA intends for it to be a direct competitor to ATI's X1900 GT, but at reference speeds the 7900 GS doesn't quite perform as high as the X1900 GT. Overclocking may improve the situation somewhat as we'll see in the next section.
Here is a breakdown of the 7900 GS cards we have for this review along with their clock speeds and prices:
As sometimes happens, we weren't able to get prices for all of these cards at the time of this writing. The Albatron 7900 GS and the Leadtek PX7900 GS TDH Extreme are not yet available, but we've included the target street prices (marked by an asterisk) for these cards. The 7900 GS was predicted to retail at around $200, and just a few weeks after its release prices reflect this. We can't predict what the market will do, but hopefully prices for the 7900 GS will drop some in the coming months.
It's interesting that the 7900 GS card in this roundup that has the highest factory overclock is also (currently) the least expensive, and right away makes the BFG model stand out. We'll look at performance in a moment, but first let's take a closer look at the individual cards.
We've recently looked at the NVIDIA GeForce 7900 GS and its architecture. To recap, the 7900 GS has identical clock speeds to the 7900 GT, but with one less vertex pipeline and four fewer pixel pipelines. NVIDIA intends for it to be a direct competitor to ATI's X1900 GT, but at reference speeds the 7900 GS doesn't quite perform as high as the X1900 GT. Overclocking may improve the situation somewhat as we'll see in the next section.
Here is a breakdown of the 7900 GS cards we have for this review along with their clock speeds and prices:
GeForce 7900 GS Clock Speeds and Pricing | ||
Manufacturer and Card | Factory Clock | Price |
Albatron GeForce 7900 GS | 450/660 | *$200-$250 |
XFX GeForce 7900 GS RoHS Extreme | 480/700 | $211 |
EVGA e-GeForce 7900 GS | 500/690 | $216 |
Leadtek Winfast PX7900 GS TDH Extreme | 520/700 | *$220 |
BFG GeForce 7900 GS OC | 540/660 | $200 |
As sometimes happens, we weren't able to get prices for all of these cards at the time of this writing. The Albatron 7900 GS and the Leadtek PX7900 GS TDH Extreme are not yet available, but we've included the target street prices (marked by an asterisk) for these cards. The 7900 GS was predicted to retail at around $200, and just a few weeks after its release prices reflect this. We can't predict what the market will do, but hopefully prices for the 7900 GS will drop some in the coming months.
It's interesting that the 7900 GS card in this roundup that has the highest factory overclock is also (currently) the least expensive, and right away makes the BFG model stand out. We'll look at performance in a moment, but first let's take a closer look at the individual cards.
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Josh Venning - Tuesday, September 19, 2006 - link
Thanks for the comment. We didn't include FSAA tests in this article because it isn't a full analysis of 7900 GS performance, but a comparison between different 7900 GS products. For an in-depth look at the 7900 GS performance in more games and settings take a look at the 7900 GS launch coverage(http://www.anandtech.com/video/showdoc.aspx?i=2827...">http://www.anandtech.com/video/showdoc.aspx?i=2827..., and the 7950 GT article which has some 7900 GS SLI numbers (http://www.anandtech.com/video/showdoc.aspx?i=2833...">http://www.anandtech.com/video/showdoc.aspx?i=2833....As far as driver settings, we test with default driver settings with the exception of vsync which is disabled. We do the same with ATI hardware; we leave catalyst AI on its default setting. We find this is the best way to keep our tests consistent for an article like this.
giantpandaman2 - Tuesday, September 19, 2006 - link
I wonder if part of the difference in heat/power consumption had to do with how much power was supplied to the fans. Slow running fan=low power=high heat. Faster fan=higher power=low heat.Meh, I'm not sure a tiny fan could ever put a dent in a 20 watt difference though.