Here are the Rise of the Tomb Raider System Requirements (Minimum)
CPU: Intel Core i3-2100 or AMD equivalent
CPU SPEED: Info
RAM: 6 GB
VIDEO CARD: NVIDIA GTX 650 2GB or AMD HD7770 2 GB
DEDICATED VIDEO RAM: 2 GB
PIXEL SHADER: 5.0
VERTEX SHADER: 5.0
OS: Windows 7 64bit
FREE DISK SPACE: 25 GB

Rise of the Tomb Raider Recommended Requirements
CPU: Intel Core i7-3770K
CPU SPEED: Info
RAM: 8 GB
VIDEO CARD: NVIDIA GTX 980Ti 2560×1440 or NVIDIA GTX 970 1920×1080
DEDICATED VIDEO RAM: 4096 MB
PIXEL SHADER: 5.1
VERTEX SHADER: 5.1
OS: Windows 10 64 bit
FREE DISK SPACE: 25 GB