`` How do Intel 's various processor brands -LRB- '' `` Atom '' '' , '' `` Celeron '' '' , '' `` Core Duo '' , `` Core 2 Duo '' '' , `` Pentium Dual Core '' , '' `` Core i3/i5/i7 '' '' -RRB- differ ? ''
Should I buy a Pentium 4 or Core 2 Duo ?