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Gigabyte GeForce 6600 GT SLI Performance Review (Intel Edition)
By Vijay Anand
Category : Graphics
Published by Vijay Anand on Monday, 11th April, 2005


Results - 3DMark03 Pro (ver. 340)

Futuremarks's 3Dmark series after the 2001 version have been strongly GPU orientated and don't quite portray the actual game play performance advantages. However, they are able to isolate and depict the capability of the graphics subsystem quite well. Looking at the results below, the new drivers seemed to have made quite an impact on the GeForce 6600 GT in SLI mode and gave it a strong 25% lead ahead of the lone GeForce 6800 GT. This is quite a marked improvement if you were to compare with the outcome we obtained in our previous article here. Single card performance remains on par in both platforms, but SLI performance is a world apart. We can't deny that the platform change plus the Hyper-Threading capability in the nForce4 SLI Intel Edition could have made a marginal positive influence, but the bulk of the gain is directly attributed to the new drivers. We'll get to the bottom of that in future with a more direct apples-to-apples comparison between both platforms.


Gigabyte NX66T128D SLI Advantage Table
Screen Resolution % Advantage Over 1x Gigabyte NX66T128D % Advantage Over 1x GeForce 6800 GT 256MB
800 x 600 60.17 % 25.08 %
1024 x 768 64.36 % 24.40 %
1280 x 1024 71.39 % 22.54 %
1600 x 1200 78.53 % 22.57 %


Even with FSAA the SLI performance advantage is pretty strong, but it withers down at high resolutions because of the limited memory bandwidth and frame buffer capacity of the GeForce 6600 GT series. This is not apparent only in 3DMark03 but almost any other graphics benchmark or game involving high resolutions with FSAA, which dampens the scalability of the GeForce 6600 GT in SLI mode. If this were dual GeForce 6800 GT cards in SLI, you wouldn't notice any bottlenecking since the card has a 256-bit wide memory controller with a large 256MB frame buffer – twice that on the 6600 GT card on both accounts. Still, the SLI results seen below smash all the results that we noted in our first GeForce 6600 GT SLI performance article based on the nForce4 SLI (for AMD) with older system and graphics card drivers than those used in this article.


Gigabyte NX66T128D SLI Advantage Table
Screen Resolution % Advantage Over 1x Gigabyte NX66T128D % Advantage Over 1x GeForce 6800 GT 256MB
800 x 600 68.72 % 16.30 %
1024 x 768 76.63 % 13.33 %
1280 x 1024 73.21 % 2.89 %
1600 x 1200 80.50 % - 4.69 %

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