Here are the Spirittea System Requirements (Minimum)
CPU: Info
CPU SPEED: 2.0 GHz
RAM: 2 GB
VIDEO CARD: NVIDIA GeForce GTX 550/equivalent or higher
DEDICATED VIDEO RAM: 1024 MB
PIXEL SHADER: 5.0
VERTEX SHADER: 5.0
OS: Windows 7 or later
Spirittea Recommended Requirements
CPU: Info
CPU SPEED: 2.0 GHz
RAM: 2 GB
VIDEO CARD: NVIDIA GeForce GTX 760/equivalent or higher
DEDICATED VIDEO RAM: 2048 MB
PIXEL SHADER: 5.0
VERTEX SHADER: 5.0
OS: Windows 10