... just posted some 2D benchmark on ASUS, MSI, Biostar,Gigabyte and Asrock motherboards
Setup used was :
Corsair AX1200i
Corsair Neutron GTX 120Go
G.Skill TridentX 2933 CL12 (reviewed on PCWorld France Here : http://www.pcworld.fr/memoire-ram/tests,tridentx-2933-maximus-vi-extreme,538875,1.htm)
Noctua C12P
Intel Core i7 4770K retail
Windows 8 64bit
M6E bios 0021
MPOWER MAX bios 1.3B1
XPOWER bios 1.1B5
Z87X OC biosF5q
Biostar Hi-Fi Z87X3D bios 06-11-2013
Asrock OC Formula bios Z87OCF1.43A
Benchmark are : Wprime 32M & 1024M, Super Pi 1M & 32M, Pifast, Intel XTU , Cinebench, Aida & the old CPUmark99 :-)
Intel Core i7 4770K was overclocked to 4.5Ghz (fixed) , CPU ring to 4Ghz and memory to 2933Mhz using CL12 XMP profile (memory timing not set manually).
Here you can also find some pictures of Z87 Motherboard.
Gigabyte Z87X-OC
MSI Z87 MPOWER MAX
Asus Maximus VI Extreme
Asrock Z87 OC Formula
Biostar HI-Fi Z87X3D
MSI Z87 XPOWER
:-)