Featured Articles

Analysts expect ARM to do well next year

Analysts expect ARM to do well next year

British chip designer ARM could cash in on the mobile industry's rush to transition to 64-bit operating systems and hardware.

More...
Huawei and Xiaomi outpace Lenovo, LG in smartphone market

Huawei and Xiaomi outpace Lenovo, LG in smartphone market

Samsung has lost smartphone market share, ending the quarter on a low note and Xiaomi appears to be the big winner.

More...
Intel Broadwell 15W coming to CES

Intel Broadwell 15W coming to CES

It looks like Intel will be showing off its 14nm processors, codenames Broadwell, in a couple of weeks at CES 2015.

More...
Gainward GTX 980 Phantom reviewed

Gainward GTX 980 Phantom reviewed

Today we’ll be taking a closer look at the recently introduced Gainward GTX 980 4GB with the company’s trademark Phantom cooler.

More...
Zotac ZBOX Sphere OI520 barebones vs Sphere Plus review

Zotac ZBOX Sphere OI520 barebones vs Sphere Plus review

Zotac has been in the nettop and mini-PC space for more than four years now and it has managed to carve…

More...
Frontpage Slideshow | Copyright © 2006-2010 orks, a business unit of Nuevvo Webware Ltd.
Friday, 06 December 2013 09:11

AMD issues statement on R9 290X press sample performance

Written by Peter Scott



New PowerTune mechanism implemented

AMD got a lot of flak last month, after it emerged that some Radeon R9 290X press samples were routinely outperforming retail cards. The issue was traced back to the PowerTune mechanism, which delivered different results on different cards.

“We have implemented an all new PowerTune mechanism in the AMD Radeon R9 290 series that exploits the full capability of the individual GPUs rather than clamping performance to a least-common-denominator type of capability level. This has the advantage of improving overall performance but does result in some degree of performance variability. These changes will also result in some degree of run-to-run test variability based on environmental and operational conditions in un-controlled test environment,” said AMD.

AMD pointed out that the performance differential is not expected to change the user experience, but admitted that the degree of variability was higher than expected.

“Reasonably we would expect the variability to occur both above and below the performance of the press samples, however it appears that most reported performances are biased towards the low side. We are actively investigating these reports and we will update when we have completed our investigation,” said AMD.

AMD stressed that the more the thermally limited the setting is, the more variation can occur. As a result, AMD implemented comprehensive PowerTune controls within the OverDrive panel of the Catalyst Control Centre, allowing users to tweak PowerTune settings and balance acoustics and performance according to their own desires. 

It’s not much of an explanation, but there you have it.

blog comments powered by Disqus

 

Facebook activity

Latest Commented Articles

Recent Comments