What is the best motherboard?

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BTW - I did notice 'ATX' but I cannot imagine a $20K build and limiting myself to 'ATX'.

Arguably, the best looking and functional build on LGA 1155 is the ASUS P8P67 WS REVOLUTION with it's perfect PCIe spacing allowing 3-WAY SLI + PhysX.
Yes best is so wide open that it could mean anything. You really need to give us a little more information on what you are going to be dong with the system. The best workstation board for a dual processor graphics set up I would have to say the Intel® S5520SC, but I wouldnt say that it is a good gaming board.

Christian Wood
Intel Enthusiast Team
 
BTW - I did notice 'ATX' but I cannot imagine a $20K build and limiting myself to 'ATX'.

Arguably, the best looking and functional build on LGA 1155 is the ASUS P8P67 WS REVOLUTION with it's perfect PCIe spacing allowing 3-WAY SLI + PhysX.
 
Solution