The latest iteration of the Pentium 4, code named Prescott, is an interesting development for a few reasons. First off, it represents Intel's entry to the world of 90nm (90 nanometre, or 0.09 micron) fabrication for processors. For the uninitiated, all this means is the size of individual components on the processor core have been shrunk to even smaller levels. It's a natural part of processor evolution to shrink the size of components, as it allows more transistors to be packed into a smaller space, reduces heat and resistance, and this all leads to faster CPUs.

Everything you need to know about AM2 -- without the headache.

A professional level water-cooling kit that's a joy to install and use.

A Power supply built with a little too much power and too little warranty.

Performance per watt has taken a backward step, but it’s very fast with the right apps.

A range of cut-down Core 2 Duo processors that are fine for everyday tasks.

A diverse family including some stellar CPUs and numerous also-rans.

A cheap, lightweight choice for single-core applications, but you get the performance you pay for.

A smartly engineered processor, but for today’s applications it’s lacking in bang per buck.

An old standard, but one that still provides decent performance at a great price.

A lightweight and cost efficient power supply.

Highly efficient PSU keeps things cool and quiet.

More power, a little noisy and less watts.

A quality PSU with an excellent 5 year warranty.

One of our favourite power supplies, with loads of headroom for everyday use.

Quiet PSU with good efficiency.

Expensive, but eye catching and very powerful.

Can Intel steal Phenom's performance thunder with this top-end quad core chip?

A world first on the desktop, Phenom is good but a long way from outstanding.