What is the Max Aggregate bandwidth with a HyperTransport of 2?
CREATE TABLE "frequency_specifications" (
  "hyper_transport_version" real,
  "year" real,
  "max_ht_frequency" text,
  "max_link_width" text,
  "max_aggregate_bandwidth_bi_directional" text,
  "max_bandwidth_at_16_bit_unidirectional" text,
  "max_bandwidth_at_32_bit_unidirectional" text
);
SELECT "max_aggregate_bandwidth_bi_directional" FROM "frequency_specifications" WHERE "hyper_transport_version"=2;