Dreamcast spec sheet

CPU: Hitachi SH-4
200MHz clock rate
360 MIPS (millions of instructions per second)
3D calculations (Can transform 5million polygons/second)
800+ MBytes/second bus bandwidth
1.4 billion floating-point operations per second
In comparison, the SH4 can calculate nearly 3 times more floating point OPs per second then a 450MHz Intel Pentiom II Processor. Or about 1.4 times more than next years' 500MHz Intel Katmai or 500MHz AMD K7.

Graphics: NEC PowerVR2 DC
3 million polygons/second peak rendering rate
Perspective-Correct Texture Mapping
Point, Bilinear, Trilinear and Anisotropic Mip-map filtering
Gouraud shading
z-buffer
Colored light sourcing
Full scene anti-aliasing
Hardware-based Fog
Bump mapping
16.77 million colors
Hardware-based texture compression
Shadow and Light volumes
Super sampling

Memory:
16 MB main RAM (SDRAM)
8 MB video RAM
2 MB sound RAM

Sound:
45MHz Yamaha 32-bit RISC CPU @ 40MIPS (more powerful than total power of PSX)
Based on ARM7TMDI Processor Core DSP.
Real-time effects (Reverb, delay, etc)
64 sound channels
Surround Sound support.
Full realtime 3D sound support matching abilities of modern home theater systems.
Hardware-based audio compression

Storage:
Proprietary 1 GD-Rom disc: Capacity 1.0GB (1024MB)
12x Yamaha (1.8MB/s)

Data Save: VMS Card
Energy-saving 8-bit CPU
128K byte memory
48x32 dot monochrome LCD display
37x26mm display size
Button battery x 2, auto off function
PWM 1 channel sound source
Size: 47mm(W) x 80mm(H) x 16mm(D)/1.9" x 3.15" x 0.63"
Weight: 45g/1.59oz

Input:
Four controller ports.
Digital and analog directional controls
Visual Memory System data save unit
Analog Steering wheel, joystick, keyboard, mouse, and more available.

Communication:
33.6Kbytes/second modem (Original Asia/Japan)
56Kbytes/second modem (USA, Europe, Asia/Japan after Sept. 1999)
Software: The Dream Passport CD
Access' NetFront and Secure Socket Layer (SSL).
NetFront includes support of HTML 3.2, main features of HTML 4.0, and SSL.
Dream Passport lets users access the web, e-mail, and chat.

Operating System:
Customized Microsoft Windows CE or Custom Sega OS (loaded at boot)

Video Output:
640x224 NTSC via composite video or RF (Composite cables included with console)
Available: RGB/VGA, S-Video.

Size: 190mm(W) x 195mm(H) x 78mm(D)/7.48" x 7.68" x 3.07"
Weight: 2.0kg/4.41lb