When comparing ClearCase vs Perforce, the Slant community recommends Perforce for most people. In the question“What are the best version control systems?” Perforce is ranked 8th while ClearCase is ranked 15th.
Ranked in these QuestionsQuestion Ranking
Pro Dynamic views
MVFS filesystem is a good approach for configuring a custom view to your files
Pro Multi platform availability
Pro Central repository/server
There's a central repository and a clear path/protocol how to reach it.
Helix Core for GIT large files is free for up to 5 users.
Pro Solid workflow for binary files
Perforce has shown itself as very capable when it comes to managing binary files. That's why it's still the go to version control system in game development.
Pro GUI and Visual Studio integration available
ClearCase is file-centric without UCM module
ClearCase is very slow
Con Closed Source
Con Does not work offline
You must be connected to the internet to do anything useful. Although, there is a Git <-> Perforce bridge that sorta solves the problem.
Branching becomes a pain due to its non-distributed model.