Photoshop's minumam requirement platforms

Windows

1. Intel® Pentium® 4 / AMD Athlon® 64 processor
2. Microsoft® Windows® XP with Service Pack 3, Windows Vista® Home Premium,Ultimate, Business, or Enterprise with Service Pack 1 (Service Pack 2 and Service Pack 3 recommended), or Windows 7
3. 1GB of RAM
4. 1GB of available hard-disk space for installation; additional free space required during installation (cannot install on removable flash-based storage devices)
5. 1024x768 display (1280x800 recommended) with qualified hardware-accelerated OpenGL graphics card, 16-bit color, and 256MB of VRAM
6. Some GPU-accelerated features require graphics support for Shader Model 3.0 and OpenGL 2.0
7. DVD-ROM drive
8. QuickTime 7.6.2 software required for multimedia features
9. Broadband Internet connection required for online services