Diablo III - official machine requirement
As previously thought, it was very similar to the Starcraft II system requirement.
The minimum and recommended machine requirements for the game have finally appeared on the Blizzard support page.
Minimum:
PC
- OS: Windows® XP / Windows Vista® / Windows® 7 (with the latest fix pack) and DirectX® 9.0c
- Processor: Intel Pentium® D 2.8 GHz or AMD AthlonTM 64 X2 4400+
- VGA: NVIDIA® GeForce® 7800 GT or ATI Radeon ™ X1950 Pro or better
Mac
- OS: Mac® OS X 10.6.8 or later Processor: Intel® Core 2 Duo
- VGA: NVIDIA® GeForce® 8600M GT or ATI Radeon ™ HD 2600 or better
For both platforms:
- 12 GB free space Memory: 1 GB RAM (1,5 GB recommended for Windows Vista® / Windows® 7 users, 2 GB for Mac®) Drive: DVD-ROM | Internet: broadband internet connection Display: 1024 × 768 resolution
Recommended:
PC
- OS: Windows® XP / Windows Vista® / Windows® 7 (with the latest fix pack) and DirectX® 9.0c
- Processor: Intel® Core 2 Duo 2.4 GHz or AMD AthlonTM 64 X2 5600+ 2.8 GHz
- Memory: 2 GB RAM
- VGA: NVIDIA® GeForce® 260 or ATI Radeon ™ HD 4870 or better
Mac
- OS: Mac® OS X 10.7 or later | Processor: Intel® Core 2 Duo | Memory: 2 GB RAM
- VGA: NVIDIA® GeForce® GT 330M or ATI Radeon ™ HD 4670 or better
Source: pcgameshardware.de