Which of this builds perform better in games?

Hello. I'm going to build new High-End gaming system, I have two options. Two options differ only in Gpu and Motherboard. Money for me is no problem I just want the best performance. I use 1920x1080 Screen i like to play games like: (Skyrim,Hitman,BF3,GTA5,Crysis3,Assasin's Creed III and Max Payne 3), probably i will add another gpu to run games at max for next 3-5 years.

In 1st option i use an ASUS 7970 Matrix Platinum with Asus Maximus V Formula.
In 2nd option i use and MSI N680 Lightning with MSI z77 MPower.

Other hardware that i use in the both options is:
i7-3770K
G.Skill 1866Mhz 8GB
CM V6GT CPU Cooler
Corsair HX 1050W
CM Storm Trooper
500GB WD Caviar Black
OCZ Vertex 4 128GB

I select the ASUS 7970 MATRIX because i saw in recent benchmarks where Matrix outperform ASUS GTX 680 TOP in many games and it has great quality.

http://www.legitreviews.com/article/2068/1/

Thanks for reading.


P.S. I like to play Skyrim with ENB and other MODs and i heard that skyrim can need more than 2GB. and I also like GTA 5 with mods i think it will need at last 1.5GB or more.