It's difficult to compare the CyberPower Gamer Ultra HD II with the other machines in this month's £751-£1,000 chart. Whereas the other four PCs will each get you only a single shiny pound in change from £1,000, this PC comes in at just £751. It's unsurprisingly, then, that it can't compete in terms of processing speed.

CyberPower has opted for one of AMD's brand-new Phenom II X4 920 processors. These quad-core chips come in at a considerably lower cost than Intel's i7 920 CPUs but, as our test results show, the gulf in performance levels is just as large: the CyberPower Gamer Ultra HD II achieved a comparatively low WorldBench 6 score of 106 points.

Bear in mind, however, that our benchmarks aren't particularly kind to quad-core systems such as the CyberPower Gamer Ultra HD II, which tend to do well at multithreaded applications. If you run a lot of these apps, such as video encoding for a portable audio player, you may find the Phenom II preferable to a dual-core system.

Costs have also been cut in the graphics department, too: the HD 4850 is the poor relation of the HD 4870 favoured by Arbico, offering the same features but reduced performance. With a standard 22in monitor and 500GB hard drive, the CyberPower Gamer Ultra HD II offers a rather basic specification. It also lacks external speakers and Blu-ray.

The CyberPower Gamer Ultra HD II uses the same case as the Arbico, but adds tool-free fittings. There's plenty of room inside for expansion, with a pair of free memory slots. There's also some cool blue illumination to keep gamers happy.

Chart ranking: Power desktop PCs

  1. Arbico Elite i748 XL
  2. Eclipse Galaxy X58n260
  3. Palicomp Phoenix E86C-22
  4. CyberPower Gamer Ultra HD II
  5. Chillblast Fusion Excalibur