which board to use with 32GB ddr3 2400mhz?

[harelnev]

I got new ddr3 32gb 2400mhz ... and I want to build a new computer (audio editing propose),
I also prefer 2 standard pci slots for my other cards - my question is

should I use motherboard that support 1600mhz memory max - like that one (so I wont be able to use the 2400mhz option)?
http://www.gigabyte.com/products/product-page.aspx?pid=4950#ov

or to use this one which support 2400mhz and give up 2 pci slots ? is there a big difference (speed)? http://www.gigabyte.com/products/product-page.aspx?pid=4168#ov

 

[Dark Lord of Tech]

I got new ddr3 32gb 2400mhz ... and I want to build a new computer (audio editing propose),
I also prefer 2 standard pci slots for my other cards - my question is

should I use motherboard that support 1600mhz memory max - like that one (so I wont be able to use the 2400mhz option)?
http://www.gigabyte.com/products/product-page.aspx?pid=4950#ov

or to use this one which support 2400mhz and give up 2 pci slots ? is there a big difference (speed)? http://www.gigabyte.com/products/product-page.aspx?pid=4168#ov

Get the UDH5 , great board it can run it with a 4690k or 4790k.