- Windows XP SP3 or Vista SP1 (Windows 2000 no longer supported)
- Pentium 4 1.3 GHz or AMD Athlon XP 1.5 GHz (up from 800 MHz Intel/AMD). Dual-core recommended.
- RAM: 512 MB/1 GB for Vista, same as before. 1 GB/2 GB recommended.
- Video: GPU with hardware transform and lighting and 32 MB VRAM, same as before. Recommended 128 MB VRAM.
- Mac OS X 10.4.11 (10.3 no longer supported)
- PowerPC G5 1.6 GHz or Intel Core Duo. G4s are no longer supported. Intel 1.8 GHz recommended.
- RAM: 1 GB, up from 512 MB. 2 GB recommended.
- Video: Hardware transform and lighting, 64 MB VRAM. 128 MB VRAM recommended.
Although it's a boost up from The Burning Crusade expansion, Wrath won't require most to get a new PC. Blizzard has already stated that it loves its money more than pushing the graphics envelope and will evolve WoW slowly over time not to lose customers.
[Via WoW Insider]