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ECS PF22 Extreme - PAGE 13
Tom Karpik, William Henning
- Friday, February 24th, 2006


3DMark 06 Fill Rate:

Excellent scaling for CrossFire here! The dual X1900 XT was actually a hair more than twice as fast as a single X1900 XT.



3DMark 06 Perlin Noise (SM3):

Again, we have just a hair under 2x the speed of a single X1900 XT when running a pair of them with Crossfire.



3DMark 06 Pixel Shader Performance:

Ok, we begin to see a clear pattern here... Crossfire with two X1900 XT's is twice as fast once again.



3DMark 06 Vertex Shader:

The pattern is somewhat broken. For complex vertex shaders, the Crossfire configuration is again twice as fast as a single X1900 XT, however very strangely for the simple vertex shader a single X1900 XT is MUCH faster than two of the cards in a Crossfire configuration! The only explanation I can think of is that the overhead of transferring the simple textures outweighs the computational benefit of Crossfire.


Article Index

1.Introduction
2.The Bundle and the Board
3.The BIOS
4.Hardware Used and Tests Performed
5.PC Magazine Business/Multimedia Winstone
6.SiSoft Sandra and WinRAR
7.MPEG2 and XviD Encoding
8.MP3 Encoding and HDTach
9.Call of Duty and Doom 3
10.Comanche 4 and Halo
11.Jedi Academy and Unreal Tournament 2004
12.CrossFire
13.CrossFire - 3DMark 2006
14.CrossFire - Doom 3, Splinter Cell 3
15.Final Thoughts

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