I can prove it look:
GameCube>
MPU (Microprocessor Unit): 485 MHz custom IBM PowerPC "Gekko"
Graphics Processor: 162 MHz custom ATI/Nintendo "Flipper"
Texture-Read Bandwidth: 10.4 GB per second (peak)
Main Memory Bandwidth: 2.6 GB per second (peak)
Pixel Depth: 24-bit color, 24-bit Z buffer
Sound Processor: 81 MHz custom Macronix 16-bit DSP
Sound Performance: 64 simultaneous channels, ADPCM encoding
Polygon Performance: 6 to 12 million polygons per second (peak)
System Memory: 40 MB
Main Memory: 24 MB MoSys 1T-SRAM
Disc Drive: 128 ms CAV (Constant Angular Velocity) system
Data Transfer Speed: 16 Mbps to 25 Mbps
Media: 3-inch, 1.5 GB capacity disc
Controller Ports: Four
Memory Card Slots: Two
Audio-Video Output: Analog and digital
Dimensions: 4.3 by 5.9 by 6.3 inches (height by width by depth)
Ps2>
CPU: 128-bit CPU
System Clock Frequency: 294.912 MHz
Cache Memory: Instruction: 16KB, Data: 8KB + 16 K(ScrP)
Main Memory: Direct Rambus (Direct RDRAM)
Memory Size: 32MB
Memory Bus Bandwidth: 3.2GB per second
Co-processor:
FPU (Floating Point Unit)
Floating Point Multiply Accumulator x 1
Floating Point Divider x 1
Vector Units:
VU0 and VU1
Floating Point Multiply Accumulator x 9
Floating Point Divider x 3
Floating Point Performance: 6.2 GFLOPS
3D CG Geometric Transformation: 66 million Polygons per Second
Compressed Image Decoder: MPEG2
GRAPHICS
Graphics Synthesizer™
Clock Frequency: 147.456MHz
Embedded DRAM: 4MB
DRAM Bus Bandwidth: 48GB per second
DRAM Bus Width: 2,560 bits
Pixel Configuration: RGB:Alpha:Z Buffer (24:8:32)
Polygon Drawing Rate: 75 million Polygons per second
Screen Resolution: Variable from 256 x 224 to 1280 x 1024
SOUND: “SPU2 + CPU”
Number of Voices: ADPCM: 48 ch on SPU2 plus definable, software programmable voices
Sound Memory: 2MB
Output Frequency: Variable up to 48 KHz (DAT quality)
IOP: I/O Processor
CPU Core: PlayStation (current) CPU (R3000)
Clock Frequency: 33.8688MHz or 36.864MHz (selectable; PlayStation/PlayStation 2 mode)
IOP Memory: 2MB
Sub Bus: 32-bit
Interface Types: IEEE1394 i.LINK, Universal Serial Bus (USB) x2, Cont... (read full answer)
see, in some aspects the ps2's got it (pretty much just in dvd's and pixel depth, other than that camecubes got it in, well, everything else)
Xbox>
CPU 733 MHz Intel Custom Pentium III
Front Side Bus 133 MHz - 1.0 GB/sec
RAM Micron 64 MB DDR SDRAM
Memory Bandwidth 6.4 GB/sec bus
Storage Medium 8 GB Hard Disk
(Western Digital, 5400 RPM)
I/O (Input / Output) w-5x DVD-ROM
Type 9 DVD - 8.5 GB single sided
4x Proprietary USB Game Ports (12 Mbps)
Broadband Ethernet Connection (100 Mbps)
Proprietary Audio/Video Connector
Graphics Processor Unit 250 MHz Custom-Designed NV2X
Max Polygon Performance 125 M/sec
Simultaneous Textures 4.8 G/Sec
Pixel Fill Rate 12w
Compressed Textures Yes (6:1)
Maximum resolution 1920 x 1080 (HDTV Required)
MPEG 2 Support Yes (Standard DVD)
HDTV Game Support Yes (HDTV Cable Required)
DVD Movie Playback Yes (DVD Remote Control Required)
Media Comm. Processor 200 MHz Processor Custom
Designed By NVIDIA
Controls Hard Disk & DVD
Controls High-Speed Ethernet
Controls Proprietary USB Game Ports
Controls Advanced Audio which uses:
licensed technology from UK's Sensaura 3D.
Peripheral Bus (MCP BUS) 400 MB/s (Full Duplex)
Broadband Enabled Yes (10/100 Mbps / TCP/IP / WinSock)
Audio Channels 256
3D Audio Support Yes (64 3D channels)
Operating System - Windows 2000 Core OS
(Custom designed by MS)
- DirectX 8.0a (Drivers)
- Part 1 of the OS is on the hard disk < 1 MB
- Part 2 of the OS can be DVD disc < 500 K
- (Part 1 includes the core OS, DirectX, DVD playback, some drivers and 3D user interface)
- (Part 2 includes things like libraries, other drivers and other features needed by the developer)
- OS takes less then 3 MB in RAM
- The OS has a 3D user interface when no games are inserted to play music CDs, run DVD movies etc.
- The games run in ring 0, known as kernel mode which is the fastest mode possible.
V-CHIP Parental control on DVD's with ESRB ratings
Size Width: ~31cm
Depth: ~27cm
Height: ~10cm
Total Internal Components 800
The xbox and gamecube are closer, but I got the xbox specs from an xbox site, so they probably exaggerated them a bit.
Im watching you...