user: Question: What was the DRAM type of an SM Count of 6?
Columns: ['Model', 'Launch', 'Code name', 'Transistors (million)', 'Die size (mm 2 )', 'Bus interface', 'Memory ( MB )', 'SM count', 'Core config 1,3', 'Core ( MHz )', 'Shader ( MHz )', 'Memory ( MHz )', 'Pixel ( GP /s)', 'Texture ( GT /s)', 'Bandwidth ( GB /s)', 'DRAM type', 'Bus width ( bit )', 'GFLOPS (FMA) 2', 'TDP (watts)', 'Release price (USD)']
Types: ['text', 'text', 'text', 'real', 'real', 'text', 'text', 'real', 'text', 'real', 'real', 'text', 'text', 'text', 'text', 'text', 'real', 'text', 'real', 'text']
Sample row: ['GeForce 405 (OEM)', 'September 16, 2011', 'GT218', 260.0, 57.0, 'PCIe 2.0 x16', '512 1024', 1.0, '16:8:4', 589.0, 1402.0, '1580', '2.4', '4.7', '12.6', 'GDDR3', 64.0, '44.9', 25.0, 'OEM']
SQL:

assistant: SELECT "DRAM type" FROM "Table" WHERE "SM count" = 6.0;