In order for you to play Sleeping Dogs: Definitive Edition on Windows with minimal graphics settings, your computer must meet the following requirements
OS *:
Windows Vista 64bit, Window 7 64bit, Windows 8 64bit (32bit O/S not supported)
Processor (CPU):
Core 2 Duo 2.4GHz or Athlon X2 2.7GHz
Memory (RAM):
4 GB RAM
Graphics Card:
DirectX 10 or 11 compatible card, ATI Radeon 3870 or higher, NVIDIA GeForce 8800 GT or higher with 512MB graphics memory, Intel HD Graphics 2500 or higher
DirectX:
Version 10
Storage:
20 GB available space
Sound Card:
DirectX compatible sound card
In order to play Sleeping Dogs: Definitive Edition on Windows with maximum graphics settings, you need a computer with a configuration no worse than the following
OS *:
Windows Vista 64bit, Window 7 64bit, Windows 8 64bit (32bit O/S not supported)
Processor (CPU):
Core i5-2300, Phenom II X4 940 or better
Memory (RAM):
8 GB RAM
Graphics Card:
DirectX 10 or 11 compatible card, ATI Radeon 7750, NVIDIA GeForce GTX 560 or higher with 1GB graphics memory, Intel HD Graphics 4000 or higher
DirectX:
Version 11
Storage:
20 GB available space
Sound Card:
DirectX compatible sound card