Which of these is better for gaming? Alienware 13 or Lenovo Y40-70 or Acer Aspire v15?

[tharve4007]

Which of these three has better performance? I don't care about battery, keyboard, etc, just want to know which performs better. The specs are all decently similar, but all the reviews say different things.

Alienware 13: i5 5200u, GTX 860m 4 gb gddr5 (i think this is probably the best because it has gddr5 instead of 3), 8 gb ram

Lenovo Y40-70: i7 4510U, AMD Radeon R9 M275 2 gb gddr3, 8gb ram

Acer Aspire V15: i5 5200U, GTX 840M 2 gb gddr3, 8 gb ram

How much FPS on games will i get on different setting?

Thanks a ton!

 

[velo3100]

The alienware is the best out of the 3 as it has the most powerful gpu.

 

[Volvomeister]

the i7 on the second one is slightly better than other ones
the 860m is the better card though