Console	Xbox	Game cube	Playstation 2	Dreamcast
Processor Clock frequency	733 MHz	485 MHz	294.912 MHz	200 MHz
Main Processor	Custom-designed chip, developed by Microsoft and nVidia	Microprocessor Unit: Custom IBM Power PC "Gekko"	Emotion Engine	PowerVR Series 2
Internal Data Precision	32-bit integer & 32-bit floating-point	32-bit Integer & 64-bit floating-point	I dunno	I dunno
External Bus	6.4GB/sec	1.3GB/second peak bandwidth (32-bit address space, 64-bit data bus 162 MHz clock)	I dunno	I dunno
Internal Cache	L1: Instruction 32KB, Data 32KB; L2: 128KB	L1: instruction 32KB, data 32KB (8 way) L2: 256KB (2 way)	Instruction: 16KB, Data: 8KB + 16 K(ScrP)	24KB L1 cache
Embedded Frame Buffer	64MB UMA	Approx. 2MB sustainable latency: 6.2ns (1T-SRAM)	4MB or something I dunno	I dunno
Embedded Texture Cache	64MB UMA	Approx. 1MB sustainable latency: 6.2ns (1T-SRAM)	I dunno	I dunno
Texture Read Bandwidth	6.4GB/sec peak	10.4GB/second (Peak)	I dunno	I dunno
Main Memory Bandwidth	6.4 GB/sec bus	2.6 GB/second (Peak)	3.2 GB/second	800 MB/second
Pixel Depth	32-bit color and Z-buffer	24-bit color and Z-buffer	24-bit color	24-bit color and Z-buffer
Image Processing Functions	Programmable vertex and pixel shaders, fog, Subpixel Anti-aliasing, 8 Hardware Lights, Alpha Blending, Multi-texturing, Bump Mapping, Environment Mapping, MIP Mapping, Bilinear Filtering, Trilinear Filtering, Anisotropic Filtering, Real-time Hardware Texture Decompression (S3TC)	Fog, subpixel anti-aliasing, 8 hardware lights, alpha blending, virtual texture design, multi-texturing, bump mapping, environment mapping, MIP mapping, bilinear filtering, trilinear filtering, anisotropic filtering, real-time hardware texture decompression (S3TC), real-time decompression of display list, HW 3-line deflickering filter.	Fog, Curved Surface Generation, Lighting	Perspective-Correct Texture Mapping Point, Bilinear, Trilinear and Anisotropic Mip-map filtering, Gouraud shading, Z-buffer, Colored light sourcing, Full scene anti-aliasing, 16.7 million colors, Hardware based, fog, bump mapping, and texture compression, Shadow and light volumes, Super sampling
System Floating-point Arithmetic Capability	120 GFLOPS	10.5 GFLOPS (Peak) (MPU, Geometry Engine, HW Lighting Total)	6.2 GFLOPS	1.4 GFLOPS
Instructions Per Second	Over 1 Trillion	925 million	30 million	360 million
Real-world polygon	116.5 million (using strips), so 116.5 vertices/sec	6 million to 12 million polygons/second (Peak) (Assuming actual game conditions with complex models, fully textured, fully lit, etc.)	2 million to 4 million polygons/second (assuming actual game conditions with complex models, fully textured, fully lit, ect.)	3 million to 6 million polygons/second (assuming actual game conditions with complex models, fully textured, fully lit, ect.)
Total System Memory	64MB	40MB	32MB	26MB
Main Memory	200MHz DDR SDRAM (400MHz effective)	24 MB MoSys 1T-SRAM, Approximately 10ns Sustainable Latency	32 MB Direct Rambus (Direct RDRAM)	16 MB main operation RAM
Memory	64 MB	40 MB, Instruction 32KB, Data 32KB (8 way), 256KB (2 way)	32MB, 16KB instruction, 8KB + 16KB (ScrP) cache	16 MB main operating RAM, 8 MB video RAM (VRAM), 2 MB sound RAM, 128KB Flash RAM
Memory bandwidth	6.4 GB/sec	2.6 GB/sec	3.2GB/sec	800+ Mb/second bus bandwidth
Graphics Processor	233 MHz	202.5 MHz	147.456 MHz	101.25 MHz
Simultaneous textures	4	I dunno	1	I dunno
Pixel fill rate with no texture	4 G/sec	648Mpixels/sec (assuming four pixel pipes)	2.4 G/sec	I dunno
Pixel fill rate with one texture	4 G/sec	I dunno	1.2 G/sec	I dunno
Pixel fill rate with two textures	4 G/sec	I dunno	0.6 G/sec	I dunno
Texture compression	6:1	ST3C compressed textures (6:1)	No texture compression	4:1
Storage media	2-5x DVD, 8 GB hard drive, 8 Mb memory card	3 inch NINTENDO GAMECUBE Disc based on Matsushita's Optical Disc Technology, Approx. 1.5GB Capacity	4x DVD, 8MB memory card	GD-ROM 1 GB storage, 12x speed
Controller ports	4	4	2	4
Memory Card Slots	2 per controller, for a total possible of 8	2	2	2 per controller, for a total possible of 8
Other Ports	Ethernet 10/100	2 High-Speed Serial Ports High-Speed Parallel Port	USB, 1394, PCMCIA	Expansion port
Sound Related Functions
Sound Processor	nVidia MCPX	custom Macronix 16-bit DSP	Custom Sony SPU2+CPU	Yamaha Super Intelligent Sound Processor
Clock Frequency	multiple clocks (three DSP cores)	81 MHz	36 MHz	81 MHz
Performance	256 simultaneous channels	64 simultaneous channels, ADPCM encoding	48	64
Sampling Frequency	48KHz	48KHz	48KHz	48KHz
3D audio	64 3D channels	No	No 3D audio	Full 3D sound support
Other audio	MIDI + DLS support, Hardware audio filtering and EQ	No	MIDI + DLS support	Hardware-based audio compression, DSP for real-time effects
Online	Broadband included, Xbox Live sold separate	Network adapter sold separate (dial-up and Broadband)	Network Adapter sold separate (dial-up and Broadband)	56k modem, web browser, 50 ft phone cord included, broadband sold separate
DVD movie playback	Remote accessory required	No DVD movie playback	Remote accessory optional	No DVD movie playback
HDTV support	Movie and game	No	Movie support only	No
Maximum resolution	1920x1080	640x480	1280x1040	640x480
Resolution in Games	640x480	640x480	320x240 for most games, sometimes 640x480	640x480
Approx. Dimensions	12.5L x 10.5W x 3.5H inches	4.3"(H) 5.9"(W) 6.3"(D)	3.2"(H) 12"(W) 7.25"(D)	Width: ~31cm Depth: ~27cm Height: ~10cm
Date launched in USA	11/15/2002	11/18/2002	October 2000	9/9/1999

Hardware Summary

Overall

Xbox easily is the best hardware, and it shows in the games. 

Game Cubes polygon performance is quite a bit lower than Xboxs, but it has most of the special effects Xbox has. Game Cubes graphics can compete with Xbox in some games.

Playstation 2s graphics dont even come close to Xbox or Game Cubes.  It definitely shows in games, jagged edges, poor lighting if any, no realism to the graphics, or gameplay due to bad special features built into the graphics chip.  The overall hardware is actually worse than Dreamcast!  Graphics should be improving over time, not disproving!  PS2 isn't a next generation system.

Dreamcast doesnt deliver to many more polygons/sec than PS2, but has way more special effects built in.  It shows in games that Dreamcast is definitely better than PS2.

1. Xbox
2. Game Cube
3. Dreamcast
4. Playstation 2