Existing software will run no faster on a PIII-450 system than on a PII-450.

CNN: Graphics applications scream on Intel Pentium III

In our graphics tests we did see a few differences among the PIII-550 systems.

CNN: Fast and pricey PIII 550 reconsidered

In fact, the 450-MHz PIII systems ran not much faster than 450-MHz Pentium IIs in our tests.

CNN: Graphics applications scream on Intel Pentium III

The company announced Monday plans to offer the 500-MHz PIII as part of its Tecra 8000 Built-to-Order line.

CNN: High-powered portables arrive in force

Our tests indicated that a PIII system can handle more visual detail and higher resolutions at 40 frames per second.

CNN: Graphics applications scream on Intel Pentium III

HP's PIII-550 machine held its own during tasks like playing a presentation in PowerPoint 97 or a clip using Macromedia Director.

CNN: Fast and pricey PIII 550 reconsidered

The new LifeBook S Series thin and light notebook will take advantage of the new PIII 400MHz processor designed for smaller systems.

CNN: High-powered portables arrive in force

One graphics package tested 24 percent faster on a 500-MHz PIII system.

CNN: Graphics applications scream on Intel Pentium III

Other major vendors are expected to announce PIII-based products in coming weeks.

CNN: High-powered portables arrive in force

Beyond the PIII processor, you'll find the PIII-550 machines' configurations generous.

CNN: Fast and pricey PIII 550 reconsidered

Notebook vendors eager to capitalize on the new technologies and the PIII's marketing clout joined Intel en masse Monday, announcing a plethora of new portable systems.

CNN: High-powered portables arrive in force

Toshiba's first PIII offering comes in its venerable Tecra line.

CNN: High-powered portables arrive in force

But there's more to the PIII than raw megahertz.

CNN: Graphics applications scream on Intel Pentium III

But the 500-MHz PIII is a speed demon.

CNN: Graphics applications scream on Intel Pentium III