Rise of the Tomb Raider is one of the many games being supported with graphical boosts on the PS4 Pro and Sony & Square Enix released a video showing the title in action running on PS4 Pro hardware.
Some reported modes for the game include the following:

• Frame Rate: Game runs at 45-60FPS at 1080p
• 4K Mode: Game runs at native 4K
• 1080P Mode: Runs at 30FPS with graphics pushed further than on the standard PS4