We test AMD’s first quad-core processor for both speed and power efficiency

The newest version of Intel’s laptop platform is here. We unveil and test real Santa Rosa hardware.

Fantastic looks and comprehensive features Lightroom is a winner for improving workflow efficiency.

Excellent quality, but the high price and sheer size make it impractical for all but a few niche applications.

In its day, it held the speed crown, but today’s dual-core CPUs leave it trailing for power, efficiency and value.

Thought Core 2 was the only choice? Think again... AMD's far from dead.

The best image quality of the 22in LCDs, plus it’s elegant and well featured.

Impressive technology, but increasing cores doesn’t necessarily increase performance.

Brief reviews of new products, plus updates on items we've already featured.

Expensive but solidly built – a fast way to get superbly vibrant A3 prints.

The 915 is an good budget choice, but elsewhere this family is eclipsed by newer offerings.

Plus, how we work out the ratings.

Sempron offers decent performance at rock-bottom prices for those on tight budgets.

Choosing a CPU for your PC isn’t an easy task. Here are our picks for budget, mid-range and high-end systems.

If you’re locked into Intel, there’s value to be had. But AMD’s Sempron is the budget-buyer’s king.

A beautiful example of high technology, but we have reservations about the ultimate quality of images.

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

More expensive than its direct competition, but thanks to its brilliant features the D80 is money well spent.

Beautifully engineered and constructed, the Mac Pro is also the fastest PC we’ve ever seen by some margin.

An expensive board, but a fascintating way of getting a powerful, quiet system, especially if you're prepared to tweak.