First off, it's AMD/ATi's RD600 Chipset, not R600. R600 is the DirectX 10 Graphics Card, with this being said, let's get on to it.
I highly doubt any Asus RD600 will ever be good enough to be embossed with the Republic of Gamers Logo. The Asus RD600 will probably be a lack luster motherboard that will be left in the dust. It looks like Intel/ATi will probably never make a good chipset ever again. With this being said, this is not to say that Asus makes poor Motherboards.
If you ask anybody with an Asus, or eVGA, 680i Motherboard whose gotten their software working correctly you can see that they will reach upwards of 3.5GHz on Water and 3.75GHz on Phase Changed Cooling. With this being said, drop in SLi'd 8800GTX's and you can easily set one of the highest 3DMark Scores on OCN.
So, since Asus is amazing and the ROG Line is godly that makes if you have either you're in heaven living it up - now what does any of this have to do with the Commando? Well, the Commando, after all, is an Asus Republic of Gamers motherboard which means that there is high standards for this board; everything must be flawless. The Asus Commando is the best overclocking Motherboard that will - probably - ever use the P965 Chipset. If you have an Asus Commando P965 ROG Motherboard, paired with an 8800GTX, and an X6800 ES Processor you have the ingredients to set the highest single Graphics Card Score in any Benchmark:
2GB of Corsair Dominators - Overclocked / Air Cooled
Intel Core 2 Duo X6800 ES Processor - Phase Changed
Asus Commando - P965 Republic of Gamers Motherboard
The eVGA 8800GTX Black Pearl - Danger Den Water Block