Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_74041 ( "Model" text, "Launch" text, "Model Number" text, "Code name" text, "Fab ( nm )" real, "Bus interface" text, "Memory ( MiB )" text, "Core ( MHz )" text, "Memory ( MHz )" text, "Config core 1" text, "Pixel ( GP /s)" text, "Texture ( GT /s)" text, "Bandwidth ( GB /s)" text, "Bus type 2" text, "Bus width ( bit )" real, "Processing Power GFLOPs" text, "DirectX" text, "OpenGL" text, "TDP (Watts) GPU only" text )

### Question ###
How many texture (gt/s) the card has if the tdp (watts) GPU only is 18?

### Accurate SQL ###

SELECT COUNT("Texture ( GT /s)") FROM table_74041 WHERE "TDP (Watts) GPU only" = '18'