hi guys. can i ask the difference between this 2 computers? thanks for your input

Computer 1 -
Inspiron 15R
Intel® Core™ i5-450M Processor (2.4GHz, 4Threads, turbo boost up to 2.66Ghz, 3M cache)
Genuine Windows® 7 Home Basic 64 bit (English)
4GB (2 X 2 GB) 2 DIMM DDR3 1333Mhz
320GB 7200RPM Hard Drive
15.6 Widescreen HD WLED Glossy Display with TrueLife™ (1366x768)
ATI Mobility Radeon™ HD 5470 - 1GB
Computer 2 -
Studio 15
Latest Intel® Core™ i5 processor for a fast responsive experience.
Intel® Core i5-450M (2.4GHz, 2Core/4Threads, turbo boost up to 2.66Ghz, 3M cache)
Genuine Windows® 7 Home Premium 64bit (English)
2GB Dual-channel 1333MHz DDR3 SDRAM (2 x 1G) (operates at 1066MHZ for Core i3/i5, and i7-620M proces
320GB 7200RPM SATA Hard Drive
15.6 " 720p WLED (1366x768) Display with TrueLife™
ATI Mobility Radeon™ HD 5470 - 1GB