Can't decide between 2 laptops

Need a laptop for college, and I've narrowed it down to 2 laptops. My question is which laptop is better for being able to play games smoothly (I don't care about having games on the highest settings) and possibly do a little CAD work? Also which computer will be more reliable? A few games I would plan on playing are Team Fortress 2, Sims 3, Starcraft 2.

1st Computer is an Acer Aspire
CPU: Intel core i5-2410M 2.30GHz
RAM: 4GB DDR3
Graphics: NVIDIA GeForce GT 540M 1GB DDR3 VRAM
HD: 500GB SATA 5400rpm
Link for anything I missed : http://www.newegg.com/Product/Product.aspx?Item=N82E168...

2nd Computer is a Dell Inspiron
CPU: Same as aspire, except has turbo boost up to 2.9GHz
RAM: 6GB Shared Dual Channel DDR3
Graphics: AMD Radeon 6470M (64-bit) 512MB(Dual)
HD: 640GB SATA 5400rpm
Link again: http://configure.us.dell.com/dellstore/config.aspx?oc=f...
Edit: I realized the dell link wont show changes that I've made, but the changes are listed above