Asus P8z77 V LX vs LK for GAMING?

[TheNewPCGuy]

I was wondering if there is any justification in spending a little extra on the LK for gaming specifically?
My build is.
i3 3570k
HD Radeon 7950
XFX Core 550w
Antec 902

Anyone know?

 

[djangoringo]

The LK has a better onboard audio and two more additional usb 3.0 ports, also it supports SLI/crossfire at 8x/8x, with two pcie 3.0 slots.
If you don't care about those, get the LX.