Early gas turbines and the machinery weight of British warships

What if the Royal Navy had developed marine gas turbines in the early or mid-1920s?

Destroyers would probably benefit first, while refitting Warspite or Renown could provide much more power for the machinery weight and space.

Marine gas turbines developed in the early or mid-1920s could offer a high power-to-weight ratio and greater speed. Destroyers are identified as the likely first beneficiaries. Retrofitting Warspite or Renown provides the capital-ship example. Replacing their existing machinery would change the weight and space needed for propulsion, although this short hypothetical does not specify a complete reconstruction.