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_
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

Question: What is the 32 nm L2 cache in Intel Core i7 microprocessors with an EC number of slbmm(c2)slbsr(k0) ?