model number sspec number frequency           turbo  cores  l2 cache l3 cache i / o bus  mult         memory      voltage   tdp     socket    release date                part number (s)  release price ( usd )
0  core i7 - 720qm   slbly (b1)   1.6 ghz   1 / 1 / 6 / 9      4  4 256 kb     6 mb       dmi    12  2 ddr3 - 1333  0.65 - 1.4v  45 w   socketg1  september 2009  by80607002907ahbx80607i7720qm                    364
1  core i7 - 740qm   slbqg (b1)  1.73 ghz   1 / 1 / 6 / 9      4  4 256 kb     6 mb       dmi    13  2 ddr3 - 1333  0.65 - 1.4v  45 w  socket g1       june 2010  by80607005259aabx80607i7740qm                    378
2  core i7 - 820qm   slblx (b1)  1.73 ghz  1 / 1 / 8 / 10      4  4 256 kb     8 mb       dmi    13  2 ddr3 - 1333  0.65 - 1.4v  45 w  socket g1  september 2009                by80607002904ak                    546
3  core i7 - 840qm   slbmp (b1)  1.87 ghz  1 / 1 / 8 / 10      4  4 256 kb     8 mb       dmi    14  2 ddr3 - 1333  0.65 - 1.4v  45 w  socket g1       june 2010  by80607002901aibx80607i7840qm                    568
4  core i7 - 920xm   slblw (b1)     2 ghz   2 / 2 / 8 / 9      4  4 256 kb     8 mb       dmi    15  2 ddr3 - 1333  0.65 - 1.4v  55 w  socket g1  september 2009                by80607002529af                   1054

Table as JSON:
{"model number":{"0":"core i7 - 720qm","1":"core i7 - 740qm","2":"core i7 - 820qm","3":"core i7 - 840qm","4":"core i7 - 920xm"},"sspec number":{"0":"slbly (b1)","1":"slbqg (b1)","2":"slblx (b1)","3":"slbmp (b1)","4":"slblw (b1)"},"frequency":{"0":"1.6 ghz","1":"1.73 ghz","2":"1.73 ghz","3":"1.87 ghz","4":"2 ghz"},"turbo":{"0":"1 \/ 1 \/ 6 \/ 9","1":"1 \/ 1 \/ 6 \/ 9","2":"1 \/ 1 \/ 8 \/ 10","3":"1 \/ 1 \/ 8 \/ 10","4":"2 \/ 2 \/ 8 \/ 9"},"cores":{"0":4,"1":4,"2":4,"3":4,"4":4},"l2 cache":{"0":"4 256 kb","1":"4 256 kb","2":"4 256 kb","3":"4 256 kb","4":"4 256 kb"},"l3 cache":{"0":"6 mb","1":"6 mb","2":"8 mb","3":"8 mb","4":"8 mb"},"i \/ o bus":{"0":"dmi","1":"dmi","2":"dmi","3":"dmi","4":"dmi"},"mult":{"0":12,"1":13,"2":13,"3":14,"4":15},"memory":{"0":"2 ddr3 - 1333","1":"2 ddr3 - 1333","2":"2 ddr3 - 1333","3":"2 ddr3 - 1333","4":"2 ddr3 - 1333"},"voltage":{"0":"0.65 - 1.4v","1":"0.65 - 1.4v","2":"0.65 - 1.4v","3":"0.65 - 1.4v","4":"0.65 - 1.4v"},"tdp":{"0":"45 w","1":"45 w","2":"45 w","3":"45 w","4":"55 w"},"socket":{"0":"socketg1","1":"socket g1","2":"socket g1","3":"socket g1","4":"socket g1"},"release date":{"0":"september 2009","1":"june 2010","2":"september 2009","3":"june 2010","4":"september 2009"},"part number (s)":{"0":"by80607002907ahbx80607i7720qm","1":"by80607005259aabx80607i7740qm","2":"by80607002904ak","3":"by80607002901aibx80607i7840qm","4":"by80607002529af"},"release price ( usd )":{"0":364,"1":378,"2":546,"3":568,"4":1054}}