Mobo- Rampage III vs. Gigabyte UD3R

Okay guys, I need some advice. I'm not a computer genius, but I'm working on building an oc gaming computer. I'm stuck at my motherboard, trying to determine if it's worth it to save money or go all out.

ASUS Rampage III Extreme LGA 1366 Intel X58 SATA 6Gb/s USB 3.0 ATX Intel Motherboard
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
or
GIGABYTE GA-X58A-UD3R LGA 1366 Intel X58 SATA 6Gb/s USB 3.0 ATX Intel Motherboard
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

I would prefer an oc close to 4.0, but beggars cannot be choosers. I'm sporting a PNY Geforce 470 1280 mb video card (only 1, but I'll be headed to 2 in the upcoming months). I'll also be sporting an I7 930 and 6 gb of Corsair XMS3.

With those above setups, does anyone know if I'll be able to tell a difference in performance between the 2 Mobos? Any preferences or inputs?