PlayStation2: The future of online gaming

When Sony first announced the Emotion Engine - on 2 March 1999 - its performance claims were greeted with much scepticism. The Emotion Engine was developed jointly by two of the world's leading electronics companies, Sony and Toshiba, which should have been enough to warn the sceptics that it could really do what was claimed. The engine is a 128-bit CPU that runs at a clock speed of a fraction under 300MHz. In order to process massive multimedia information at the fastest possible speeds, data bus, cache memory and all registers are 128-bit, integrated on a single chip. The chip was the first to use 0.18-micron technology, beating Intel's latest Pentium III.

The CPU incorporates onto one silicon chip two 64-bit integer units with a 128-bit SIMD multi-media command unit, two independent floating-point vector calculation units (VU0, VU1), an MPEG 2 decoder circuit and high performance DMA controllers. This, according to Sony, permits the high-speed performance of complicated physical calculation, NURBS curved surface generation and 3D geometric transformations, which are difficult to perform in real time with PC CPUs.

By processing the data at 128 bits on one chip, it is possible to process and transfer massive volumes of multimedia data. The main memory supporting the high-speed CPU uses the Direct Rambus (DRAM) in two channels to achieve a 3.2GB/second bus bandwidth. This, says Sony, equates to four times the performance of PCs built on the PC-100 architecture.

By incorporating the MPEG 2 decoder circuitry on one chip, it is possible to simultaneously process high-resolution 3D graphics data and high-quality DVD images. As a result, the joint venture partners claim their Emotion Engine is capable of producing up to 66 million polygons per second, comparable with that of high-end graphics workstations used in motion picture production.

Join the PC World newsletter!

Error: Please check your email address.

Our Back to Business guide highlights the best products for you to boost your productivity at home, on the road, at the office, or in the classroom.

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

David Hellaby

PC World
Show Comments

Cool Tech

Crucial Ballistix Elite 32GB Kit (4 x 8GB) DDR4-3000 UDIMM

Learn more >

Gadgets & Things

Lexar® Professional 1000x microSDHC™/microSDXC™ UHS-II cards

Learn more >

Family Friendly

Lexar® JumpDrive® S57 USB 3.0 flash drive 

Learn more >

Stocking Stuffer

Plox Star Wars Death Star Levitating Bluetooth Speaker

Learn more >

Christmas Gift Guide

Click for more ›

Most Popular Reviews

Latest News Articles


GGG Evaluation Team

Kathy Cassidy


First impression on unpacking the Q702 test unit was the solid feel and clean, minimalist styling.

Anthony Grifoni


For work use, Microsoft Word and Excel programs pre-installed on the device are adequate for preparing short documents.

Steph Mundell


The Fujitsu LifeBook UH574 allowed for great mobility without being obnoxiously heavy or clunky. Its twelve hours of battery life did not disappoint.

Andrew Mitsi


The screen was particularly good. It is bright and visible from most angles, however heat is an issue, particularly around the Windows button on the front, and on the back where the battery housing is located.

Simon Harriott


My first impression after unboxing the Q702 is that it is a nice looking unit. Styling is somewhat minimalist but very effective. The tablet part, once detached, has a nice weight, and no buttons or switches are located in awkward or intrusive positions.

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?