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AMD Radeon HD 6670 1GB & HD 6570 512MB Review

Author: SKYMTL
Date: April 18, 2011
Product Name: HD 6670 1GB & HD 6570 512MB
 
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Core Temperature & Acoustics


For all temperature testing, the cards were placed on an open test bench with a single 120mm 1200RPM fan placed ~8 away from the heatsink. The ambient temperature was kept at a constant 22C (+/- 0.5C). If the ambient temperatures rose above 23C at any time throughout the test, all benchmarking was stopped. For this test we use the 3DMark Batch Size test at it highest triangle count with 4xAA and 16xAF enabled and looped it for one hour to determine the peak load temperature as measured by GPU-Z.

For Idle tests, we let the system idle at the Windows 7 desktop for 15 minutes and recorded the peak temperature.



Temperatures on entry level cards are typically quite low and these two cards are no different. The HD 6570's heatsink isn't all that well appointed which results in slightly higher temperatures but they aren't anything close to worrying. The HD 6670 and HD 6570 are also extremely quiet.


System Power Consumption


For this test we hooked up our power supply to a UPM power meter that will log the power consumption of the whole system twice every second. In order to stress the GPU as much as possible we once again use the Batch Render test in 3DMark06 and let it run for 30 minutes to determine the peak power consumption while letting the card sit at a stable Windows desktop for 30 minutes to determine the peak idle power consumption. We have also included several other tests as well.

Please note that after extensive testing, we have found that simply plugging in a power meter to a wall outlet or UPS will NOT give you accurate power consumption numbers due to slight changes in the input voltage. Thus we use a Tripp-Lite 1800W line conditioner between the 120V outlet and the power meter.


Power consumption is about what we would have expected for both cards which means they are both highly efficient considering the performance they deliver against some other GPUs in this chart. Just remember that the HD 6570 we used is the GDDR5 version which does consume more power than the lower priced DDR3 edition.
 
 
 

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