Intel® Core™ i3-350M Processor (2.26Ghz,
4Threads, 3M cache) and 4GB (2 X 2 GB) 2 DIMM DDR3 1333Mhz
IS IT BETTER THAN
Intel® Core™ i5-520M (2.40GHz base, up to
2.93GHz, 2C/4T, 3MB L3) WITH
4GB (2X2G) DDR3-1066MHz SDRAM, 2 DIMM
If you want to get down to the nuts and bolts, Yes the i5 is better.
Although overall, you wouldn't notice the difference.