Specifications

CPU

• 128 bit "Emotion Engine" clocked at 294 MHz (299 Mhz on newer versions), 10.5 million transistors
  • System Memory: 32 MB Direct RAMBUS or RDRAM
  • Memory bus Bandwidth: 3.2 GB per second
  • Main processor: MIPS R5900 CPU core, 64 bit
  • Coprocessor: FPU (Floating Point Multiply Accumulator × 1, Floating Point Divider × 1)
  • Vector Units: VU0 and VU1 (Floating Point Multiply Accumulator × 9, Floating Point Divider × 1), 128 bit
    • VU0 used for physics and other gameplay
    • VU1 used for polygon transformations, lighting and other visual based calculations
  • Floating Point Performance: 6.2 GFLOPS (single precision 32-bit floating point)
    • FPU 0.64gflops
    • VU0 2.44gflops
    • VU1 3.08gflops
  • 3D CG Geometric Transformation: 66 million polygons/sec
    • 3D CG Geometric Tranformations under curved surfaces: 16 million polygons/sec
  • Compressed Image Decoder: MPEG-2
  • I/O Processor interconnection: Remote Procedure Call over a serial link, DMA controller for bulk transfer
  • Cache memory: Instruction: 16KB, Data: 8KB + 16 KB (ScrP)

Graphics

• Graphics Synthesizer clocked at 147 MHz
• Pixel pipelines:16
• Video output resolution: variable from 256x224 to 1280x1024 pixels
• 4 MB Embedded DRAM video memory bandwith at 48GB per second (main system 32 MB can be dedicated into VRAM)
• DRAM Bus bandwidth: 48.0GB per second
  • Texture buffer bandwith: 9.6GB/sec
  • Frame buffer bandwith:38.4GB/sec
• DRAM Bus width: 2560-bit (composed of three independent buses: 1024-bit write, 1024-bit read, 512-bit read/write)
• Pixel Configuration: RGB: Alpha:Z Buffer (24:8, 15:1 for RGB, 16, 24, or 32-bit Z buffer)
• Dedicated connection to: Main CPU and VU1
• Overall Pixel fillrate: 16x147 = 23.52Gpixel/sec(rounded to 2.4Gpixel/sec)
• Pixel fillrate: with no texture, flat shaded 2.4(75,000,000 32pixel real-world triangles)
• Pixel fillrate: with 1 full texture(Defuse Map), Gouraud shaded 1.2(37,750,000 32pixel real-world triangles)
• Pixel fillrate: with 2 full textures(Defuse map + specular or alpha or other), Gouraud shaded 0.6(18,750,000 32pixel real-world triangles)
• Multi-pass rendering ability
  • Four passes = 300M pixels/second (300M pixel/sec divided by 32pixel = 9,375,000 triangle/sec lossed every four passes)

Sound

• "SPU1+SPU2" (SPU1 is actually the CPU clocked at 8 MHz)
• Number of voices: 48 hardware channels of ADPCM on SPU2 plus software-mixed channels
• Sampling Frequency: 44.1 kHz or 48 kHz (selectable)
• Output: Dolby Digital 5.1 Surround sound, DTS (cutscenes only), later games achieved analogue 5.1 surround during gameplay through Dolby Pro Logic II

I/O Processor

• CPU Core: Original PlayStation CPU (MIPS R3000A clocked at 33.8688 MHz or 37.5 MHz)
• Sub Bus: 32 Bit
• Connection to: SPU and CD/DVD controller

Interface Types

• 2 proprietary PlayStation controller ports (250KHz clock for PS1 and 500KHz for PS2 controllers)
• 2 proprietary Memory Card slots using MagicGate encryption (250KHz for PS1 cards, up to 2MHz for PS2 cards)
• Expansion ...