I want to replace my graphics card

hi i have dell inspiron N5010 with the following configuration

System Model: Inspiron N5010

Processor: Intel(R) Core(TM) i5 CPU M 430 @ 2.27GHz (4 CPUs), ~2.3GHz

Memory: 5120MB RAM

Available OS Memory: 4982MB RAM

Card name: ATI Mobility Radeon HD 5470

Manufacturer: ATI Technologies Inc.

Chip type: ATI display adapter (0x68E0)

DAC type: Internal DAC(400MHz)

Display Memory: 2737 MB

Dedicated Memory: 502 MB

Shared Memory: 2235 MB

Current Mode: 1366 x 768 (32 bit) (60Hz)

Monitor Name: Generic PnP Monitor

i want to replace new grafics card 1 gb AMD Radeon HD 6630M is it possible?