The Steam page for Dying Light has revised system specifications for Techland's survival/horror game, which are no longer as steep as what was revealed yesterday, so there seems to have been some initial confusion. Here are the updated specs:

System Requirements

MINIMUM:
OS: Windows® 7 64-bit / Windows® 8 64-bit / Windows® 8.1 64-bit
Processor: Intel® Core™ i5-2500 @3.3 GHz / AMD FX-8320 @3.5 GHz
Memory: 4 GB RAM DDR3
Hard Drive: 40 GB free space
Graphics: NVIDIA® GeForce® GTX 560 / AMD Radeon™ HD 6870 (1GB VRAM)
DirectX®: Version 11
Sound: DirectX® compatible
Additional Notes: Laptop versions of graphics cards may work but are NOT officially supported.

Windows-compatible keyboard, mouse, optional controller (Xbox 360 Controller for Windows recommended)

RECOMMENDED:
OS: Windows® 7 64-bit / Windows® 8 64-bit / Windows® 8.1 64-bit
Processor: Intel® Core™ i5-4670K @3.4 GHz / AMD FX-8350 @4.0 GHz
Memory: 8 GB RAM DDR3
Hard Drive: 40 GB free space
Graphics: NVIDIA® GeForce® GTX 780 / AMD Radeon™ R9 290 (2GB VRAM)
DirectX®: Version 11
Sound: DirectX® compatible
Additional Notes: Laptop versions of graphics cards may work but are NOT officially supported.

Windows-compatible keyboard, mouse, optional controller (Xbox 360 Controller for Windows recommended)