Featured Articles

Intel releases tiny 3G cell modem

Intel releases tiny 3G cell modem

Intel has released a 3G cellular modem with an integrated power amplifier that fits into a 300 mm2 footprint, claiming it…

More...
Braswell 14nm Atom slips to Q2 15

Braswell 14nm Atom slips to Q2 15

It's not all rosy in the house of Intel. It seems that upcoming Atom out-of-order cores might be giving this semiconductor…

More...
TSMC 16nm wafers coming in Q1 2015

TSMC 16nm wafers coming in Q1 2015

TSMC will start producing 16nm wafers in the first quarter of 2015. Sometime in the second quarter production should ramp up…

More...
Skylake-S LGA is 35W to 95W TDP part

Skylake-S LGA is 35W to 95W TDP part

Skylake-S is the ‘tock’ of the Haswell architecture and despite being delayed from the original plan, this desktop part is scheduled…

More...
Aerocool Dead Silence reviewed

Aerocool Dead Silence reviewed

Aerocool is well known for its gamer cases with aggressive styling. However, the Dead Silence chassis offers consumers a new choice,…

More...
Frontpage Slideshow | Copyright © 2006-2010 orks, a business unit of Nuevvo Webware Ltd.
Wednesday, 12 January 2011 14:28

PowerColor HD 6870 PCS+ tested - 6. Overclocking, Temperatures, Consumption

Written by Sanjin Rados
thumb

Review: Batmobile in action again



Overclocking

HD 6870’s reference clocks are 900MHz for the GPU and 1050MHz for the memory, and our today’s PowerColor cards clocks are 940MHz for the GPU and 1100MHz for the memory. We relied on MSI’s Afterburner for our overclocking. We managed to hit 985MHz for the GPU but only after we increased the voltage.

We managed to hit 960MHz for the GPU and 1100MHz for the memory by running the card on factory voltage and with the fan in AUTO mode, it resulted in additional 4% better results in Aliens vs. Predator. Overclocking to  985MHz GPU provided another 2% boost to results.

gpuz__6870_pcs

6870_powercolor_pcs_afterburner_ref

gpuz__6870_pcs_OC

6870_powercolor_pcs_afterburner_volt



Thermals and Noise

PowerColor HD 6870 PCS+ didn’t exceed 86°C during our tests. The cooler was almost inaudible in idle operation (42°C). Although PowerColor’s card runs a few °C higher than the reference card, you’re still in the safe zone. On the other hand, the cooler wasn’t loud, not even in intensive GPU operation. Naturally, you can always turn to Catalyst Overdrive and meddle a bit to find your preferred temperature-noise ratio.


Power Consumption

HD 6870 consumes 19W in idle and 151W during operation whereas the 6850 draws 19W when idle and 127W during operation.

We measured our entire rig's consumption after stressing the graphics with FurMark. The tests show that HD 6870’s consumption is similar to the GTX 460 1GB. PowerColor HD 6870 PCS+ consumes about 15W more that the reference card.

(Page 6 of 7)
Last modified on Tuesday, 18 January 2011 21:30
blog comments powered by Disqus

 

Facebook activity

Latest Commented Articles

Recent Comments