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home : articles : PSX2 vs. PC : page 2

Joe Glass
February 7, 2000

Main CPU:
128bit RISC CPU core operating at 300mhz
Integer Unit 64bit (2-way Superscalar)
Multimedia extended instructions 107 instructions at 128bit width
Integer General Purpose Register 32 at 128 bit width
Main Memory 32MB (Direct RDRAM 2ch@800MHz) with 3.2GB/sec of bandwidth
Co-processor1 FPU (Floating Point Multiply Accumulator x 1, Floating Point Divider x 1)
Co-processor2 VU0 (Floating Point Multiply Accumulator x 4, Floating Point Divider x 1)
Vector Processing Unit VU1
(Floating Point Multiply Accumulator x 5, Floating Point Divider x 2)
0.18 Micron Gate Width / 4 level process
10.5 Million transistors
Floating Point Performance 6.2GFLOPS

Graphics Synthesizer or GS:
Parallel Rendering Processor
16 Pixel Engines (in Parallel)
150 Mhz core
Embedded DRAM 4 MB of multi-port DRAM (Synced at 150MHz - Total Internal Memory Bandwidth 48 GB/s)
Combined Internal Data Bus bandwidth 2560 bit (Read 1024 bit, Write 1024 bit, Texture 512 bit)
32bit Display Color Depth (RGBA, 8bits each)
32bit Z buffer
0.25 Micron Gate Width / 4 level process
43 Million transistors
1.2 Gigapixels/s (single texture, alpha, and z buffer)
25 Million Polygons/s (48 Pixel quad with Z buffer, alpha, and single texture)
Output - NTSC/PAL/DTV/VESA @ 1280x1024 MAX

IOP I/O Processor:
CPU Core PlayStation (current) CPU
Clock Frequency 33.8MHz or 37.5MHz (Selectable)
Sub Bus 32 Bit
Interface Types IEEE1394, Universal Serial Bus (USB)
Communication via PC-Card (PCMCIA)

Sound "SPU2+CPU":
Number of Voices ADPCM: 48ch on SPU2 plus definable, software programmable voices
Sampling Frequency 44.1 KHz or 48 KHz (selectable)

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