Here are some specific similarities between the Olympic and the Titanic:
Overall size: Both the Olympic and the Titanic were massive vessels for their time. The Olympic was 882 feet long and weighed over 46,000 tons, while the Titanic was 882 feet 9 inches long and weighed over 46,328 tons.
Layout: The Olympic and the Titanic had very similar layouts. They both had three main passenger decks, as well as a promenade deck and a boat deck. The ships also had a large dining room, a ballroom, a smoking room, and a library.
Propulsion systems: The Olympic and the Titanic were both powered by steam turbines. The Olympic had three turbines, while the Titanic had four. Both ships also had four propellers.
Despite these similarities, there were also some differences between the Olympic and the Titanic. For example, the Titanic had a slightly larger waterline length and a higher gross tonnage. Additionally, the Titanic had some improvements over the Olympic, such as a more powerful wireless telegraph system and a larger number of lifeboats.