Main CPU
Motorola 68000 @ 12.5 MHz.
El mismo que la Mega Drive/Genesis. Actua como coprocesador. Aun siendo el mismo procesador,el de la Mega Drive corre a 7.9 MHz.
Graphics
Graphics Processor: Custom ASIC
Number of simultaneous colours on screen:64. (Using programming tricks, this limit is increased to 128 colours via HAM "Hold and Modify").
Colours available in Cinepak and TruVideo modes: 128 to 256 colours
Video size from 1/4 to full screen.
Advanced compression scheme
Software-based upgrade
RAM
Main RAM:6 Mbit
PCM samples:512 Kbit
CD-ROM data cache : 128 Kbit
64 Kbit Internal Backup RAM
Soporte
500 MB CD-ROM discs (equivalent to 62 min of audio data )
1/4 screen B/W footage video: 1.5 to 4 hours
1/4 screen color footage: 45 minutes
CD-ROM drive transfer rate: 150 kbytes/s (1X )
Used for Games, cd player, cd+g and karaoke.
Access time: 800 ms
Sonido
Sound format: Stereo PCM.
Sound channels: 8
Maximum sample rate: 32 KHz (44.1khz for CD-DA).
16 Bit DAC
8X internal over-sampling digital filter
Frequency Range: 20Hz - 20 KHz
Signal-to-Noise Ratio: > 900dB @ 1K
Channel Separation: >900 dBvchgghc
Output: RCA stereo Pin Jack x2 (L/R) / SCART cable
El audio de Mega CD añade 10 canales extra a la Mega Drive.