
Sega 32X
Technical Specifications
CPU
2x Hitachi SH-2 (SH7604) RISC processors @ 23 MHz each (same architecture as Sega Saturn), with Genesis Motorola 68000 @ 7.67 MHz and Z80 @ 3.58 MHz still active
GPU
Custom 32X VDP with dual frame buffers, capable of overlaying 32X graphics on Genesis VDP output; supports 32,768 simultaneous colors (15-bit)
Memory
256 KB SDRAM (main program RAM for SH-2 processors), 256 KB frame buffer VRAM (dual 128 KB buffers for double-buffered rendering), plus access to Genesis 64 KB main RAM
Storage
32X Cartridge ROM (plugs into 32X unit, which connects to Genesis cartridge slot), Genesis cartridge passthrough slot for backward compatibility
Display
Overlays 32X video output on top of Genesis video; 32,768 colors (15-bit RGB), supports sprite and polygon rendering; final video output combines both sources through the 32X A/V connector
Audio
PWM (Pulse Width Modulation) sound source, 2 channels, 22 kHz sample rate; mixed with Genesis YM2612 FM synthesis and SN76489 PSG audio output
Media
32X proprietary cartridge, Genesis cartridge passthrough, compatible with Sega CD when all three devices connected (6 'Sega CD 32X' titles released)
History
Hardware Variants
Sega 32X (Genesis / Mega Drive 32X)
Released: November 21, 1994
The only model produced. Plugged into the Genesis cartridge slot and included its own AC adapter and A/V patch cable. Launched at $159.99 in North America, ?16,800 in Japan.
Sega Neptune (cancelled)
Released: January 1, 1995
An announced but never released all-in-one console that would have integrated the Genesis and 32X into a single unit. Cancelled as Sega shifted focus to the Saturn.
32X + Sega CD combo (Tower of Power)
Released: December 1, 1994
Not a separate product but a configuration combining Genesis + Sega CD + 32X. Only 6 games (such as Night Trap 32X and Fahrenheit) utilized all three devices simultaneously.
Development Story

Mortal Kombat II
• 1994

DOOM
• 1994

Knuckles' Chaotix
• 1995

Star Wars Arcade
• 1994

Sonic 4: Cybernetic Outbreak
• 1995

Virtua Fighter
• 1995

Golden Axe
• 1994

X-MEN
• 1994

The Amazing Spider-Man: Web of Fire
• 1996

NBA Jam: Tournament Edition
• 1995

WWF WrestleMania: The Arcade Game
• 1995

Virtua Racing Deluxe
• 1994
About the Sega 32X
The Sega 32X (32X) is a home video game console manufactured by Sega. Released on November 21, 1994, it belongs to the 0th generation of gaming hardware.
With a library of 17+ games, the 32X remains one of the most popular platforms for retro gaming enthusiasts. Our wiki provides detailed information about the hardware specifications, variants, and game library to help you understand and appreciate this classic gaming system.
Whether you're researching emulation compatibility, collecting vintage hardware, or simply exploring gaming history, the 32X encyclopedia entry offers comprehensive information about this iconic gaming platform.