Performance Analysis for X79 / Z68 / 990FX chipsets

Tweaktown has posted a performance analysis from Crossfire X setups when paired with the main chipsets (X79 / Z68 / 990FX) available now:

http://www.tweaktown.com/articles/4433/x79_z68_990fx_crossfirex_hd_6970_x3_performance_analysis/index1.html