PlayStation technical specifications

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An SCPH-1000 motherboard
An SCPH-5001 motherboard
An SCPH-9001 motherboard
An SCPH-101 motherboard

The PlayStation technical specifications describe the various components of the original PlayStation video game console.

Central processing unit (CPU)[edit]

LSI CoreWare CW33300-based core[1]

Geometry Transformation Engine (GTE)

Motion Decoder (MDEC)

  • Also residing within the main CPU, enables full screen, high quality FMV playback and is responsible for decompressing images and video into VRAM.[4]
  • Operating performance: 80 MIPS[8]
  • Documented device mode is to read three RLE-encoded 16×16 macroblocks, run IDCT and assemble a single 16×16 RGB macroblock.
  • Output data may be transferred directly to GPU via DMA.
  • It is possible to overwrite IDCT matrix and some additional parameters, however MDEC internal instruction set was never documented.
  • It is directly connected to a CPU bus.

System Control Coprocessor (Cop0)[citation needed]

  • This unit is part of the CPU. Has 16 32-bit control registers.
  • Modified from the original R3000A cop0 architecture, with the addition of a few registers and functions.
  • Controls memory management through virtual memory technique, system interrupts, exception handling, and breakpoints.


  • MB main EDO DRAM[4]
  • Additional RAM is integrated with the GPU (including a 1 MB framebuffer) and SPU (512 KB), see below for details.
  • Cache RAM for CPU core and CD-ROM. See the relevant sections for details.
  • Flash RAM support through the use of memory cards, see below.
  • BIOS stored on 512 KB ROM

Graphics processing unit (GPU)[edit]

32-bit Sony GPU (designed by Toshiba)[9]

Sound processing unit (SPU)[edit]

16-bit Sony SPU[4]

I/O system and connectivity[edit]

CD-ROM drive
  • 660 MB maximum storage capacity, double speed CD-ROM drive
  • 2×, with a maximum data throughput of 300 KB/s (double speed), 150 KB/s (normal)[8]
  • 128 KB data buffer
  • XA Mode 2 compliant
  • Audio CD play[8]
  • CD-DA (CD-Digital Audio)
  • Rated for 70,000 seek operations[11]
Two control pads via connectors[8]
  • Expandable with multitap connector[8]
Backup flash RAM support
  • Two removable cards[8]
  • Each card has 128 KB flash memory
  • OS support for File Save, Retrieve and Remove[8]
Video and audio connectivity
Serial and parallel ports
Power input
  • 100 V AC (NTSC-J); 120 V AC (NTSC-U/C); or 220–240 V AC (PAL)
  • 7.5 V DC 2 A (PSone only)

See also[edit]


  1. ^ "FastForward Sony Taps LSI Logic for PlayStation Video Game CPU Chip".
  2. ^ a b c d e "Sony's PlayStation Debuts in Japan!". Electronic Gaming Monthly. No. 65. Sendai Publishing. December 1994. p. 70.
  3. ^ "FastForward Sony Taps LSI Logic for PlayStation Video Game CPU Chip". FastForward. Retrieved 29 January 2014.
  4. ^ a b c d e f g h "Inside the PlayStation". Next Generation. No. 6. Imagine Media. June 1995. p. 51.
  5. ^ a b "Tech Specs: Sony PlayStation". Next Generation. No. 12. Imagine Media. December 1995. p. 40.
  6. ^ Karl Hodge. "Hall of Fame: Sony PlayStation, the games console that changed everything".
  7. ^ "Sony PlayStation". GamePro. No. 72. IDG. September 1994. p. 20.
  8. ^ a b c d e f g h i j k l "Sony PlayStation". Next Generation. No. 24. Imagine Media. December 1996. p. 50.
  9. ^ "Is it Time to Rename the GPU? | IEEE Computer Society".
  10. ^ "NEXT Generation Issue #1 January 1995". January 1995.
  11. ^ "Making Crash Bandicoot – part 5". 6 February 2011.