Which of these 2 notebooks has better specs for gaming ?

[RickyGall1]

Acer AS4750G-2414G50

* 2nd Generation of Intel® Core™ i5-2410M Processor
* Genuine Windows® 7 Home Premium 64-bit
* 4GB DDR3 RAM
* NVIDIA® GeForce® GT 520M

or Acer AS5742G-6600

*Intel® Core™ i5-480M processor
* Windows® 7 Home Premium
*4GB DDR3 RAM
*NVIDIA® GeForce® GT 540M

Thanks.