The Granite Dreadnought was a major improvement over the existing Basalt Dreadnought. The Granite Dreadnought made use of the advanced phase concentrators, weapons that could have their fire combined into a single cohesive shot capable of downing enemy shields and burrowing deeply into the enemy’s hull. Strong shields and good armor round out the Granite design, reinforcing its potency in combat.
During its time in service there were few alien ships that could best the Granite Dreadnought in battle. The ship remained highly susceptible to ranged ballistic attacks during its attack run, a problem common within the Tholian fleet, but the dreadnought’s large number of point defense phasers help to mitigate this flaw.