The NVIDIA GeForce 7900 GS: A Closer Look
by Josh Venning on September 19, 2006 5:00 AM EST- Posted in
- GPUs
Final Words
To recap, we've seen the kind of impact on performance the different factory overclocks can make with these cards. The BFG 7900 GS OC and Leadtek PX7900 GS TDH Extreme in particular do much better than the reference clocked Albatron 7900 GS, with the BFG performing the best by a slight amount in all of the tests. After our Leadtek 7900 GS, The EVGA e-GeForce 7900 GS KO performed slightly better than the XFX 7900 GS Extreme, with the Albatron 7900 GS at the bottom in terms of performance. As we've mentioned already, the core clock speeds will usually have a more significant impact on performance than the memory clock speeds, which explains how the overclocked BFG 7900 GS performs so much better than the others without any overclock on the memory clock.
We also saw that the BFG 7900 GS OC outperformed the X1900 GT in most of our tests with its high factory overclock. The fact that the 7900 GS is NVIDIA's competition to the X1900 GT makes this finding significant, especially when you consider the price difference between these two cards. At the time of this writing, the BFG 7900 GS OC is available for $200, and since the lowest price for the X1900 GT is around $220, this would make the 7900 GS a little more desirable to the average buyer. ATI does hold a clear lead with the X1900 GT in Oblivion performance, however, and as we saw in our 7900 GS overview it also leads in Quake 4.
We've also seen that by user-overclocking the 7900 GS, we can get a much higher level of performance out of these cards. This is something that will potentially make the card more desirable to gamers who are interested in overclocking their GPUs. The XFX 7900 GS RoHS Extreme and the EVGA 7900 GS KO in particular got very high overclocks, resulting in significant performance increases in Oblivion and Battlefield 2.
Something else we want to touch on is HDCP capabilities with these cards. This is something that may not be a vital feature for many users at this time, but support for HDCP will become more important for those interested in using their PCs to watch protected content in the near future. Of the five 7900 GS cards in this review, only two of them do not support HDCP at this time: the XFX 7900 GS RoHS Extreme and the BFG 7900 GS OC. This might be an important factor for many potential buyers looking for a 7900 GS that is right for them.
For reference, here is an overview of the cards and their respective factory clocks, our user overclocks, prices, and whether or not they support HDCP.
Taking into consideration performance and price, there is little debate that the BFG GeForce 7900 GS OC at $200 is the best choice out of the five 7900 GS cards we have for this review. It is not only the least expensive 7900 GS (out of the reviewed cards) currently on the market, but it happens to have the highest factory overclock as well. It has two drawbacks however in that it doesn't come with any games and also it does not support HDCP. Given the sheer performance potential of this card however we still would recommend it over the others.
We don't know the price yet, but unless the price for the Albatron GeForce 7900 GS is exceptionally low (say around $180) we wouldn't recommend buying this card. The bundled TOCA Race Driver 3 game might make this package more appealing for a few, but we found that this card was the worst in both out-of-the-box and user-overclocking performance.
For those in the market for a 7900 GS who want HDCP support, a very nice factory overclock, and a couple of games included in the bundle, keep a lookout for the Leadtek WinFast PX7900 GS TDH Extreme. This will hopefully be on shelves soon for around the MSRP of $220. The EVGA e-GeForce 7900 GS KO would be a good choice for those who want HDCP support, a couple of games (including Hitman: Blood Money), and an exceptional warranty policy (EVGA will replace your card for any reason aside from deliberate physical damage; even if you break it while overclocking). The XFX GeForce 7900 GS RoHS Extreme at $211 is a decent price, and it's overclocking potential is noteworthy, but like the BFG you don't get any support for HDCP or any games included in the bundle.
If you need a 7900 GS right now (and don't care about HDCP support), grab the factory-overclocked BFG 7900 GS CO for $200. If you aren't in a big hurry, the Leadtek WinFast PX7900 GS TDH Extreme looks like it might be a great option if it hits the market soon and at the suggested price of around $220. These are our current picks out of the 7900 GS cards on the market, but hopefully we'll be able to look at some more manufacturers' versions of NVIDIA's 7900 GS sometime soon.
To recap, we've seen the kind of impact on performance the different factory overclocks can make with these cards. The BFG 7900 GS OC and Leadtek PX7900 GS TDH Extreme in particular do much better than the reference clocked Albatron 7900 GS, with the BFG performing the best by a slight amount in all of the tests. After our Leadtek 7900 GS, The EVGA e-GeForce 7900 GS KO performed slightly better than the XFX 7900 GS Extreme, with the Albatron 7900 GS at the bottom in terms of performance. As we've mentioned already, the core clock speeds will usually have a more significant impact on performance than the memory clock speeds, which explains how the overclocked BFG 7900 GS performs so much better than the others without any overclock on the memory clock.
We also saw that the BFG 7900 GS OC outperformed the X1900 GT in most of our tests with its high factory overclock. The fact that the 7900 GS is NVIDIA's competition to the X1900 GT makes this finding significant, especially when you consider the price difference between these two cards. At the time of this writing, the BFG 7900 GS OC is available for $200, and since the lowest price for the X1900 GT is around $220, this would make the 7900 GS a little more desirable to the average buyer. ATI does hold a clear lead with the X1900 GT in Oblivion performance, however, and as we saw in our 7900 GS overview it also leads in Quake 4.
We've also seen that by user-overclocking the 7900 GS, we can get a much higher level of performance out of these cards. This is something that will potentially make the card more desirable to gamers who are interested in overclocking their GPUs. The XFX 7900 GS RoHS Extreme and the EVGA 7900 GS KO in particular got very high overclocks, resulting in significant performance increases in Oblivion and Battlefield 2.
Something else we want to touch on is HDCP capabilities with these cards. This is something that may not be a vital feature for many users at this time, but support for HDCP will become more important for those interested in using their PCs to watch protected content in the near future. Of the five 7900 GS cards in this review, only two of them do not support HDCP at this time: the XFX 7900 GS RoHS Extreme and the BFG 7900 GS OC. This might be an important factor for many potential buyers looking for a 7900 GS that is right for them.
For reference, here is an overview of the cards and their respective factory clocks, our user overclocks, prices, and whether or not they support HDCP.
GeForce 7900 GS Overview | ||||
Manufacturer and Card | Factory Clock | User Overclock | Price | HDCP |
Albatron GeForce 7900 GS | 450/660 | 524/800 | N/A | Yes |
XFX GeForce 7900 GS RoHS Extreme | 480/700 | 597/824 | $211 | No |
EVGA e-GeForce 7900 GS KO | 500/690 | 591/812 | $216 | Yes |
Leadtek Winfast PX7900 GS TDH Extreme | 520/700 | 556/790 | $220 (MSRP) | Yes |
BFG GeForce 7900 GS OC | 540/660 | 571/751 | $200 | No |
Taking into consideration performance and price, there is little debate that the BFG GeForce 7900 GS OC at $200 is the best choice out of the five 7900 GS cards we have for this review. It is not only the least expensive 7900 GS (out of the reviewed cards) currently on the market, but it happens to have the highest factory overclock as well. It has two drawbacks however in that it doesn't come with any games and also it does not support HDCP. Given the sheer performance potential of this card however we still would recommend it over the others.
We don't know the price yet, but unless the price for the Albatron GeForce 7900 GS is exceptionally low (say around $180) we wouldn't recommend buying this card. The bundled TOCA Race Driver 3 game might make this package more appealing for a few, but we found that this card was the worst in both out-of-the-box and user-overclocking performance.
For those in the market for a 7900 GS who want HDCP support, a very nice factory overclock, and a couple of games included in the bundle, keep a lookout for the Leadtek WinFast PX7900 GS TDH Extreme. This will hopefully be on shelves soon for around the MSRP of $220. The EVGA e-GeForce 7900 GS KO would be a good choice for those who want HDCP support, a couple of games (including Hitman: Blood Money), and an exceptional warranty policy (EVGA will replace your card for any reason aside from deliberate physical damage; even if you break it while overclocking). The XFX GeForce 7900 GS RoHS Extreme at $211 is a decent price, and it's overclocking potential is noteworthy, but like the BFG you don't get any support for HDCP or any games included in the bundle.
If you need a 7900 GS right now (and don't care about HDCP support), grab the factory-overclocked BFG 7900 GS CO for $200. If you aren't in a big hurry, the Leadtek WinFast PX7900 GS TDH Extreme looks like it might be a great option if it hits the market soon and at the suggested price of around $220. These are our current picks out of the 7900 GS cards on the market, but hopefully we'll be able to look at some more manufacturers' versions of NVIDIA's 7900 GS sometime soon.
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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.