XBox Specs

• CPU: 733 MHz Intel
• Graphics Processor: 250MHz custom Xchip, developed by Microsoft and nVIDIA
• Total Memory: 64 MB
• Memory Bandwidth: 6.4 GB/sec
• Polygon Performance: 125 M/sec
• Sustained Polygon Performance: 100+ M/sec (transformed and lit polygons per second)
• Micropolygons/particles per second: 125 M/sec
• Particle Performance: 125 M/sec
• Simultaneous Textures: 4 Pixel Fill Rate - No Texture: 4.0 G/Sec (anti-aliased)
• Pixel Fill Rate - 1 Texture: 4.0 G/Sec (anti-aliased)
• Compressed Textures: Yes (6:1)
• Full Scene Anti-Alias: Yes
• Micro Polygon Support: Yes
• Storage Medium: 2-5x DVD, 8GB hard disk, 8MB memory card I/0: 2-5x DVD, 8GB hard disk, 8MB memory card
• Audio Channels:64 (up to 256 stereo voices)
• 3D Audio Support: Yes
• MIDI DLS2 Support: Yes
• AC3 Encoded Game Audio: Yes
• Broadband Enabled: Yes
• Modem Enabled: No
• DVD Movie Playback: Remote control package required
• Maximum Resolution: 1920x1080
• Maximum Resolution (2x32bpp frame buffers +Z): 1920x1080
• HDTV Support: Yes

Source: xbox.ign.com