Dell Inspiron m5030 v140 or t4500

[xzerrr000]

I want to buy a new laptop.My endless search found 2 potential candidates:
DELL Inspiron M5030
AMD V140
DDR3 SDRAM 4GB
ATI Mobility Radeon HD4250
640GB HDD
&
Dell Inspiron N5030
Intel Dual Core T4500 2.30 GHz / 800 MHz, 1 MB L2
2048MB 1333MHz DDR3
500GB HDD
Intel GMA 4500MHD

I JUST CAN'T CHOSE?
Can someone analyse them for me ,and tell me witch one is the best choice!

Thanks in advance!