Here at PC Advisor, we like firsts. And particularly when they come with a more affordable sub-£700 price tag. The proud boast here in question from the Yoyotech Warbird i650? It's the first system to run Intel's brand-new Core i5 650 processor at 4GHz.
Given that this chip generally hums along at ‘just' 3.2GHz, the 4GHz figure is a sizeable increase, and one that yields a clear advantage in our WorldBench 6 tests - the Yoyotech Warbird i650 produces a stunning 144 points, outstripping much of the competition at the £750 mark with a lead that almost stretches into the double figures.
The i650 isn't a perfect choice for everyone though, and it does offer only dual-core facilities. This means that it won't necessarily glide through multi-threaded applications with the same ease as similarly-priced PCs offering quad-core i5 750 processors.
In CineBench, for instance, the Yoyotech Warbird i650 was only able to produce a figure of 2.15x in multi-core tests - where the AMD-powered Palicomp, in contrast, notched up 3.26x speed.
Even with the high clock speed, we found the Yoyotech Warbird i650 to be very stable during testing, and it's runs quite cool too. Indeed, little heat emanates from the robust Gigabyte case paired with an Akasa X4 cooler - a budget but effective fan.
There's very little noise, although that may be less surprising given the PSU's modest 500 watt rating. This makes the Yoyotech Warbird i650 one of the more underpowered PCs in this price range, and the lowly PSU will be a limitation should you plan to significantly upgrade the graphics card in the future.
The card is an ATI Radeon HD 5750 with 1GB RAM, equipped with DVI, HDMI and DisplayPort connectors. While not the most powerful option seen on PCs up to £750, it's still a very sturdy model that makes use of this higher-clocked CPU to edge ahead of the similar 5750 systems in the £750 PCs chart.
The Crysis scores of 66.1 (High Quality at a resolution of 1024x768) and 22.2fps (Very High Quality at 1680x1050) are respectable, if not quite able to match those systems sporting by 5770 or 4890 chips. In the less taxing FEAR, the Warbird shone with a score of 281fps.
The Yoyotech Warbird i650's 4GB memory comes as high-performance DDR3-1600 chips from G.Skill. The 500GB Samsung drive offers capable storage, and while we have seen more capacity at this price, 500GB is ample for many users.
The 22in LG W2254TQ display is competent, and the 22-speed Samsung DVD burner fast. An octet of USB ports usefully adds a pair of USB 3.0, and FireWire is also included. We like the 64-bit version of Microsoft Windows 7 Home Premium that's provided as standard, although the one-year warranty could be more generous.
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