Sapphire Radeon HD 6670 and Radeon HD 6570 Graphics Cards Review

9. Media Playback11. Conclusion


Sapphire Radeon HD 6670 and Radeon HD 6570 Graphics Card Reviews

Power / Temps / Noise

As the 6900 series, GTX 500 series and no doubt future generations perform power management in a different way to older cards we have changed the way we test power and temperature levels in our reviews. For idle power we list the full system use at the wall after sitting at the desktop with no activity for 5 minutes. Load power is the highest reading we saw for the full system when testing during this review. Temperatures are taken in the same way. Noise levels are taken after a period of prolonged gaming in a scenario which applied maximum load to the GPU.

  Radeon 6570 Radeon 6670
Idle Temp 33°C 36°C
Load Temp 55°C 61°C
Idle Power +10w +10w
Load Power +40w +48w

In this test for power use we note the additional watts drawn by the system when compared to the integrated graphics on the Sandy Bridge platform. What this tells us is that for an additional 40/50w we get full DX11 features, enhanced media and GPU computing performance and higher gaming performance. The total power draw for both systems is still well below 200w at load.

The great thing, in the case of Sapphires models, is that this is achieved with very low noise levels and impressive temperatures. Here are a couple of videos which show the noise levels of our cards when running in our main benchmarking PC.

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Overclocking
Just like the higher specification cards that Sapphire offer these lower priced alternatives fully support overclocking and to achieve higher speeds we can run Sapphires own TriXX utility. By simply moving a couple of sliders and testing for stability we can enhance the performance of the cards significantly. Shown below are the maximum overclocks we achieved on each card and the 3DMark 11 scores that each produced.

  Stock Max OC Stock 3DMark 11 OC 3DMark 11
Radeon 6570 650/1000 735/1140 P1520 P1798
Radeon 6670 800/1000 922/1163 P1804 P1992

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