Verdict: Awesome for Athlon 64, pointless for Pentium 4

The G-Power Cooler Pro is the high-end version of the G-Power Lite, and unlike Gigabyte's earlier HSFs, it's actually pretty damn good.

The G-Power Cooler Pro has a copper base that transfers heat from the CPU into four heatpipes. The heatpipes then move the heat up and away into a nest of aluminium fins, which are in turn cooled by an illuminated variable-speed 92mm fan. The supplied rheostat fits in a 3.5in drive bay, and can adjust the fan's speed between a very quiet 1,700rpm and a very noisy 3,200rpm.

At maximum fan speed, the G-Power Cooler Pro proved to be the best Athlon 64 HSF around, cooling the CPU to 24ûC below the reference AMD HSF, and 19ûC below at minimum fan speed. Unfortunately, it isn't anywhere near as good on a Pentium 4, suggesting that its LGA775 mounting mechanism needs reworking. At maximum fan speed, it cooled the CPU to just 4ûC below the reference Intel HSF, and 2ûC below at minimum fan speed.

While the G-Power Cooler Pro is a superlative Athlon 64 HSF, it's barely any better than the reference Intel HSF at cooling an overclocked and overvolted Pentium 4.

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