[Table] header: Model number | sSpec number | Frequency | Turbo | GPU frequency | Cores | L2 cache | L3 cache | I/O bus | Mult. | Memory | Voltage | Socket | Release date | Part number(s) | Release price ( USD ) row 1 : standard power | standard power | standard power | standard power | standard power | standard power | standard power | standard power | standard power | standard power | standard power | standard power | standard power | standard power | standard power | standard power
row 2 : Core i7-620M | SLBPD(C2)SLBTQ( | 2.67 GHz | 3/5 | 500–766 MHz | 2 | 2 × 256 KB | 4 MB | DMI | 20× | 2 × DDR3-1066 | 0.775–1.4V | SocketG1 BGA-1288 | January 2010 | CP80617003981AHCN80 | $332
row 3 : Core i7-640M | SLBTN(K0)SLBTP | 2.8 GHz | 3/5 | 500–766 MHz | 2 | 2 × 256 KB | 4 MB | DMI | 21× | 2 × DDR3-1066 | 0.775–1.4V | Socket G1BGA-1288 | September 2010 | CP80617004152AECN80 | $346
row 4 : standard power, embedded | standard power, embedded | standard power, embedded | standard power, embedded | standard power, embedded | standard power, embedded | standard power, embedded | standard power, embedded | standard power, embedded | standard power, embedded | standard power, embedded | standard power, embedded | standard power, embedded | standard power, embedded | standard power, embedded | standard power, embedded
row 5 : Core i7-610E | SLBRZ(C2)SLBX | 2.53 GHz | 3/5 | 500–766 MHz | 2 | 2 × 256 KB | 4 MB | DMI | 19× | 2 × DDR3-1066 | 0.775–1.4V | BGA-1288 | January 2010 | CN80617005745AB | $320
row 6 : low power | low power | low power | low power | low power | low power | low power | low power | low power | low power | low power | low power | low power | low power | low power | low power
row 7 : Core i7-620LM | SLBML(C2)SLBSU( | 2 GHz | 4/6 | 266–566 MHz | 2 | 2 × 256 KB | 4 MB | DMI | 15× | 2 × DDR3-1066 | 0.75–1.4V | BGA-1288 | January 2010 | CN80617003879AD | $300
row 8 : Core i7-640LM | SLBMK(C2)SLBSV | 2.13 GHz | 4/6 | 266–566 MHz | 2 | 2 × 256 KB | 4 MB | DMI | 16× | 2 × DDR3-1066 | 0.75–1.4V | BGA-1288 | January 2010 | CN80617003885AE | $332
row 9 : Core i7-660LM | SLBSW(K0) | 2.27 GHz | 4/6 | 266–566 MHz | 2 | 2 × 256 KB | 4 MB | DMI | 17× | 2 × DDR3-1066 | 0.75–1.4V | BGA-1288 | September 2010 | CN80617004857AA | $346
row 10 : low power, embedded | low power, embedded | low power, embedded | low power, embedded | low power, embedded | low power, embedded | low power, embedded | low power, embedded | low power, embedded | low power, embedded | low power, embedded | low power, embedded | low power, embedded | low power, embedded | low power, embedded | low power, embedded
row 11 : Core i7-620LE | SLBP9(C2)SLBX | 2 GHz | 4/6 | 266–566 MHz | 2 | 2 × 256 KB | 4 MB | DMI | 15× | 2 × DDR3-1066 | 0.75–1.4V | BGA-1288 | January 2010 | CN80617004455AB | $311
row 12 : ultra-low power | ultra-low power | ultra-low power | ultra-low power | ultra-low power | ultra-low power | ultra-low power | ultra-low power | ultra-low power | ultra-low power | ultra-low power | ultra-low power | ultra-low power | ultra-low power | ultra-low power | ultra-low power
row 13 : Core i7-620UM | SLBMN(C2)SLBSX | 1.07 GHz | 5/8 | 166–500 MHz | 2 | 2 × 256 KB | 4 MB | DMI | 8× | 2 × DDR3-800 | 0.725–1.4V | BGA-1288 | January 2010 | CN80617003882AE | $278
row 14 : Core i7-640UM | SLBMM(C2)SLBSR( | 1.2 GHz | 5/8 | 166–500 MHz | 2 | 2 × 256 KB | 4 MB | DMI | 9× | 2 × DDR3-800 | 0.725–1.4V | BGA-1288 | January 2010 | CN80617003888AD | $305
row 15 : Core i7-660UM | SLBSS(K0) | 1.33 GHz | 5/8 | 166–500 MHz | 2 | 2 × 256 KB | 4 MB | DMI | 10× | 2 × DDR3-800 | 0.725–1.4V | BGA-1288 | May 2010 | CN80617005187AB | $317
row 16 : Core i7-680UM | SLBST(K0) | 1.47 GHz | 5/8 | 166–500 MHz | 2 | 2 × 256 KB | 4 MB | DMI | 11× | 2 × DDR3-800 | 0.725–1.4V | BGA-1288 | September 2010 | CN80617004860AA | $317
row 17 : ultra-low power, embedded | ultra-low power, embedded | ultra-low power, embedded | ultra-low power, embedded | ultra-low power, embedded | ultra-low power, embedded | ultra-low power, embedded | ultra-low power, embedded | ultra-low power, embedded | ultra-low power, embedded | ultra-low power, embedded | ultra-low power, embedded | ultra-low power, embedded | ultra-low power, embedded | ultra-low power, embedded | ultra-low power, embedded
row 18 : Core i7-620UE | SLBPA(C2)SLBXJ | 1.07 GHz | 5/8 | 166–500 MHz | 2 | 2 × 256 KB | 4 MB | DMI | 8× | 2 × DDR3-800 | 0.725–1.4V | BGA-1288 | January 2010 | CN80617004458AB | $289
row 19 : Core i7-660UE | SLBWV(K0) | 1.33 GHz | 5/8 | 166–500 MHz | 2 | 2 × 256 KB | 4 MB | DMI | 10× | 2 × DDR3-800 | 0.725–1.4V | BGA-1288 | August 2010 | CN80617006204AA | $301 [/Table] Answer this question based on the above table: What is I/O bus when socket is socket g1bga-1288?

Answer: DMI