Quadtet: Nvidia GeForce 7900 Quad SLI Performance Unveiled. Page 26
[04/30/2006 02:24 AM | Graphics]
by Anton Shilov , Alexey Stepin
When announcing the quad SLI technology at CES 2006, Nvidia Corp. stated that there are some gamers who desire to have extreme performance, quality and exclusivity, but did not begin shipping such products immediately. At CeBIT 2006 the company stated that the systems featuring four GPUs were shipping, even though not all system makers can supply such computers even now. Two announcements and several systems shipped to end-users later, X-bit labs is publishing the performance preview of the technology that made such a loud hype to reveal all the truth about it. Check out how a GeForce 7900 quad SLI performs against rivals in over 10 games.
Shader Model 3.0 Game 1
Both a high scene fill rate and a high speed of execution of numerous pixel shaders is important for the first SM3.0/HDR test, and it’s here that the advantage of the Radeon X1900 XT CrossFire is well outlined. The gap diminishes in higher resolutions, from about 30% to 20%. So, the four chips of the GeForce 7900 quad SLI platform obviously have a lower efficiency than the two chips of the Radeon X1900 XT CrossFire in this test.
Shader Model 3.0 Game 2
The second SM3.0/HDR test isn’t as difficult as the first one, focusing on realistic dynamic shadows and HDR lighting. Anyway, the Radeon X1900 XT CrossFire outperforms the GeForce 7900 GTX in all the resolutions here.
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