Which should I choose, Xperia SP or Lenovo S820?

Which is better?

Lenovo s820 is Quad core while Xperia SP is dual core.
Lenovo s820 has 4.7 inch while xperia sp has 4.6
But I'm wondering
Lenovo s820's score on antutu is 13,000 - 15,000 while sp reaches 20,000
so does that mean xperia sp is faster for gaming than lenovo s820?

I think it is a good phone S820, S820 I recently bought a cell phone. Mobile pixel is very clear, is 13MP pixels, and the appearance is also very nice. I just saw this phone on this site have discount, I'm going to buy a friend gave me as a birthday gift!
http://www.aliexpress.com/...98836.html

Xperia Z2:)