As expected, there’s really no surprise in the hardware department:

PC System Requirements

Processor:
Minimum: Intel Pentium 4 1.3 GHz or AMD Athlon XP 1500+
Recommended: Dual-core processor, such as the Intel Pentium D or AMD Athlon 64 X2
Memory:
Minimum: 512 MB RAM (1GB for Vista users)
Recommended: 1 GB RAM (2 GB for Vista users)
Video:
Minimum: 3D graphics processor with Hardware Transform and Lighting with 32 MB VRAM Such as an ATI Radeon 7200 or NVIDIA GeForce 2 class card or better
Recommended: 3D graphics processor with Vertex and Pixel Shader capability with 128 MB VRAM Such as an ATI Radeon X1600 or NVIDIA GeForce 7600 GT class card or better
Hard Drive Space: 15 GB free hard drive space

Mac System Requirements

Processor:
Minimum: PowerPC G5 1.6 GHz or Intel Core Duo processor
Recommended: Intel 1.8GHz processor or better
Memory:
Minimum: 1 GB RAM
Recommended: 2 GB RAM
Video:
Minimum: 3D graphics processor with Hardware Transform and Lighting with 64 MB VRAM
Such as an ATI Radeon 9600 or NVIDIA GeForce Ti 4600 class card or better
Recommended: 3D graphics processor with Vertex and Pixel Shader capability with 128 MB VRAM
Such as an ATI Radeon X1600 or NVIDIA 7600 class card or better
Hard Drive Space: 15 GB free hard drive space

World of Warcraft: Wrath of the Lich King will be released on November 13.