Minimum System Requirements
Windows
OS:
Windows XP SP3
Processor:
2.4 GHz Dual Core Processor
Memory:
2 GB(XP)/ 2 GB(Vista)
Graphics:
NVIDIA GeForce 8500 /ATI Radeon HD 2600
Storage:
13 GB free
Notes:
DirectX 9.0c Compatible
macOS
OS:
10.12 (Sierra)
Processor:
2.4 GHz Intel Core 2 Duo (Dual-Core)
Memory:
4 GB RAM
Graphics:
ATI Radeon HD 2600 / NVidia Geforce 8800/ Intel HD 3000
Storage:
13 GB
Notes:
Macintosh mouse and keyboard. Borderlands 2 supports both the Xbox 360 wired gamepad AND the PlayStation 3 Dualshock 3 Wireless Controller
Linux
OS:
SteamOS, Ubuntu 14.04
Processor:
Intel Core 2 Quad, AMD Phenom II X4; 2.4GHz
Memory:
4 GB RAM
Graphics:
Geforce 260; 1GB
Storage:
13 GB
Recommended System Requirements
Windows
OS:
Windows XP SP3/Vista/Win 7
Processor:
2.3 GHz Quad Core processor
Memory:
2 GB
Graphics:
NVIDIA GeForce GTX 560 / ATI Radeon HD 5850
Storage:
20 GB free
Notes:
DirectX 9.0c Compatible
macOS
OS:
10.12 (Sierra)
Processor:
2.2GHz Intel Quad Core
Memory:
4 GB RAM
Graphics:
ATI Radeon HD 5750 / NVidia Geforce 650M / Intel HD 4000
These are the requirements the publisher lists on Steam.
