user: Question: What is the TDP (w) of the chipset with a codename sb850?
Columns: ['Model', 'Codename', 'Released', 'Fab ( nm )', 'SATA', 'USB 2.0+1.1', 'USB 3.0', 'Parallel ATA 1', 'RAID', 'Gb Ethernet MAC', 'Package', 'TDP ( W )']
Types: ['text', 'text', 'text', 'real', 'text', 'text', 'text', 'text', 'real', 'text', 'text', 'real']
Sample row: ['AMD 480/570/580/690 CrossFire Chipset', 'SB600', '2006', 130.0, '4×3Gbit/s AHCI 1.1 SATA Revision 2.0', '10 + 0', 'No', '1 × ATA/133', 110.0, 'No', '548-pin FC-BGA', 4.0]
SQL:

assistant: SELECT "TDP ( W )" FROM "Table" WHERE "Codename" = 'sb850';