For a release price of $72, what is the TDP of the microprocessor?
CREATE TABLE "45_nm" (
  "model_number" text,
  "s_spec_number" text,
  "frequency" text,
  "gpu_frequency" text,
  "l2_cache" text,
  "i_o_bus" text,
  "memory" text,
  "voltage" text,
  "tdp" text,
  "socket" text,
  "release_date" text,
  "part_number_s" text,
  "release_price_usd" text
);
SELECT "tdp" FROM "45_nm" WHERE "release_price_usd"='$72';