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Sapphire Radeon HD 7850 OverClock Edition Graphics Card Review

Sapphire Radeon HD 7850 OverClock Edition Graphics Card Review

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Sapphire Radeon HD 7850 OverClock Edition Graphics Card Review

Power, Temps, Noise and Overclocking

Essay On Heroes As with the Radeon 6900 series and GTX 500 series the 7800 series performs power management in a different way to older cards so 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.

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Sapphire Radeon HD 7850 OC 122w 252w 33°C 70°C
Radeon HD 7870 124w 254w 30°C 71°C
Radeon HD 6870 130w 278w 38°C 76°C
GeForce GTX 560 Ti OC 135w 355w 33°C 83°C College Essay Consultant Starting with the idle readings we see that the Sapphire 7850 OC sits around 2w less in power use than a reference 7870 with the older Radeon and Geforce over 130w. Temperatures are close between our 560 Ti and 7850 at idle however when we move to load the Radeon has a temperature which is 13°C lower while requiring 100w less to achieve its performance.

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Proteomics Phd Thesis Sticking with the power and noise theme for a moment one of the key 7000 series features which was covered in our original reviews is the advanced power management which has been implemented in Crossfire. In that mode AMD are able to send the second card to an ultra-low power state when idle and as shown below this means turning the GPU and memory to 0MHz.

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Writing Masters Degree Thesis In this test the Sapphire card is able to run at the maximum speed available when overclocking, 1050/1450MHz which gives us an increase of around 600 points.

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