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Gigabyte HD 5870 SOC, PowerColor PCS+ HD5870 Graphics Cards

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PowerColor PCS+ HD5870 1GB GDDR5 (AX5870 1GBD5-PPDHG2)

The heart of the cooler is a massive copper heatsink, boosted by heatpipes, mounted on the core. It doesn't cool down memory chips though. Then there's a big, slow fan that drives air both outside and inside the enclosure. The cooler is quite efficient and noiseless.

Gigabyte GV-R587SO-1GD

The idea is similar, but heatpipes transfer heat to two heatsinks, each with its own fan. Despite more moving parts, the cooler is noiseless, thanks to slow speed and high-quality fans. This solution doesn't cool down memory chips either.

We monitored temperatures using the EVGA Precision utility based on RivaTuner.

Gigabyte GV-R587SO-1GD

PowerColor PCS+ HD5870 1GB GDDR5 (AX5870 1GBD5-PPDHG2)

What can we say, it's magnificent. Just look at the results of Gigabyte GV-R587SO-1GD. At clock rates that high, we got temperature that low. PowerColor AX5870 1GBD5-PPDHG2 also confirmed the efficiency of its cooler.

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