Table:
text: List of Intel Core i7 microprocessors
Mobile processors
"Clarksfield" (45 nm)
Model_number sSpec_number Frequency Turbo Cores L2_cache L3_cache I_O_bus Mult_ Memory Voltage TDP Socket Release_date Part_numbers Release_price_USD_
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
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
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

Question: If socketg1 is the socket, what is the release price in dollars for Intel Core i7 "Clarksfield" (45nm) mobile microprocessors?