[['model number', 'sspec number', 'frequency', 'gpu frequency', 'l2 cache', 'i / o bus', 'memory', 'voltage', 'socket', 'release date', 'part number (s)', 'release price ( usd )'], ['atom e620', 'slh56 (b0) slj32 (b1)', '600 mhz', '320 mhz', '512 kb', 'pcie', '1 ddr2 - 800', '0.8 - 1.175v', 'fc - bga 676', 'september 14 , 2010', 'ct80618005844aa', '19'], ['atom e620t', 'slh5n (b0) slj36 (b1)', '600 mhz', '320 mhz', '512 kb', 'pcie', '1 ddr2 - 800', '0.8 - 1.175v', 'fc - bga 676', 'september 14 , 2010', 'ct80618005844ab', '22'], ['atom e640', 'slh55 (b0) slj33 (b1)', '1 ghz', '320 mhz', '512 kb', 'pcie', '1 ddr2 - 800', '0.8 - 1.175v', 'fc - bga 676', 'september 14 , 2010', 'ct80618005841aa', '29'], ['atom e640t', 'slh5 m (b0) slj37 (b1)', '1 ghz', '320 mhz', '512 kb', 'pcie', '1 ddr2 - 800', '0.8 - 1.175v', 'fc - bga 676', 'september 14 , 2010', 'ct80618005841ab', '37'], ['atom e660', 'slh54 (b0) slj34 (b1)', '1.3 ghz', '400 mhz', '512 kb', 'pcie', '1 ddr2 - 800', '0.8 - 1.175v', 'fc - bga 676', 'september 14 , 2010', 'ct80618003201aa', '54'], ['atom e660t', 'slh5l (b0) slj38 (b1)', '1.3 ghz', '400 mhz', '512 kb', 'pcie', '1 ddr2 - 800', '0.8 - 1.175v', 'fc - bga 676', 'september 14 , 2010', 'ct80618003201ab', '64'], ['atom e680', 'slh94 (b0) slj35 (b1)', '1.6 ghz', '400 mhz', '512 kb', 'pcie', '1 ddr2 - 800', '0.8 - 1.175v', 'fc - bga 676', 'september 14 , 2010', 'ct80618007035aa', '74'], ['atom e680t', 'slh95 (b0) slj39 (b1)', '1.6 ghz', '400 mhz', '512 kb', 'pcie', '1 ddr2 - 800', '0.8 - 1.175v', 'fc - bga 676', 'september 14 , 2010', 'ct80618007035ab', '85']]
both Atom E640 and Atom E640t Model have only 1 Ghz Frequency
both [ENT] and [ENT] [ENT] have only [ENT] [ENT]