What is the difference between and dell inspiron 1750 and a dell studio 17?

My mum got me a dell inspiron 1750 for christmas. i was wondering what is the difference in that and a dell studio .


do the keys in the dell inspiron have a back light


and are there like touch play and pause buttons and stuff|||the studio is 400 more





STUDIO DETIALS








LCD Panel17.3” HD+ (900p) Bright LED Display with TrueLife™ and Camera


Specifications - LCD Panel








8X Slot Load CD/DVD Burner (Dual Layer DVD+/-R Drive)


4GB4 Shared Dual Channel DDR3 at 1066MHz


Specifications - Memory


500GB5 SATA HDD (7200rpm)


1GB3 ATI Mobility Radeon HD 4650


Intel® Core™ i7-720QM Quad Core Processor @ 1.6GHz (2.8GHz Turbo Mode, 6MB Cache)


Specifications - Processor





the inprion has





Intel® Core™2 Duo T6600 (2.2GHz /800MHz FSB / 2MB


17.3" HD+ WLED LCD


8X CD/DVD Burner (Dual Layer DVD+/-R Drive


4GB4 Shared Dual Channel DDR2 at 800MHz


500GB5 SATA Hard Drive (5400RPM)


Intel Graphics Media Accelerator X4500HD


Integrated 1.3 MP Webcam|||w