Table:
text: List of Intel Core i7 microprocessors
" " ( , 32 nm)
" " ( , 32 nm)
Model_number sSpec_number Frequency Turbo GPU_frequency Cores L2_cache L3_cache I_O_bus Mult_ Memory Voltage Socket Release_date Part_numbers Release_price_USD_
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
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
Core i7-620UE SLBPA(C2)SLBXJ(K0) 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
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

text: List of Intel Core i7 microprocessors
" " ( , 32 nm)
" " ( , 32 nm)
Model_number sSpec_number Frequency Turbo GPU_frequency Cores L2_cache L3_cache I_O_bus Mult_ Memory Voltage Socket Release_date Part_numbers Release_price_USD_
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
Core i7-620UM SLBMN(C2)SLBSX(K0) 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
Core i7-640UM SLBMM(C2)SLBSR(K0) 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
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

text: List of Intel Core i7 microprocessors
" " ( , 32 nm)
" " ( , 32 nm)
Model_number sSpec_number Frequency Turbo GPU_frequency Cores L2_cache L3_cache I_O_bus Mult_ Memory Voltage Socket Release_date Part_numbers Release_price_USD_
Core i7-640LM SLBMK(C2)SLBSV(K0) 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
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
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
Core i7-620LE SLBP9(C2)SLBXH(K0) 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

text: List of Intel Core i7 microprocessors
" " ( , 32 nm)
" " ( , 32 nm)
Model_number sSpec_number Frequency Turbo GPU_frequency Cores L2_cache L3_cache I_O_bus Mult_ Memory Voltage Socket Release_date Part_numbers Release_price_USD_
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
Core i7-610E SLBRZ(C2)SLBXX(K0) 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
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
Core i7-620LM SLBML(C2)SLBSU(K0) 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

text: List of Intel Core i7 microprocessors
" " ( , 32 nm)
" " ( , 32 nm)
Model_number sSpec_number Frequency Turbo GPU_frequency Cores L2_cache L3_cache I_O_bus Mult_ Memory Voltage Socket Release_date Part_numbers Release_price_USD_
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
Core i7-620M SLBPD(C2)SLBTQ(K0)SLBPE(C2)SLBTR(K0)SLBZT(K0) 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 CP80617003981AHCN80617003981AHCN80617006930AA $332
Core i7-640M SLBTN(K0)SLBTP(K0)SLBZU(K0) 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 CP80617004152AECN80617004152AECN80617006936AA $346

Question: What is the voltage if the L2 cache is 2 × 256 kb and the turbo is 5/8 for the " " (, 32 nm) of the Intel Core i7 microprocessors?