What a Royal Navy ship could have done for Titanic

What if a Royal Navy cruiser or capital ship reached Titanic half an hour before the final plunge?

Its crew would have illuminated the area and used every available means to evacuate as many people as possible.

No precise survivor count is offered. A nearby cruiser or capital ship would illuminate the area and make every possible effort to transfer people away from Titanic. Its arrival before the final plunge would expand the rescue effort without guaranteeing a specific outcome.