In the wake of our investigation into whether retail Radeon R9 290X cards are slower than press samples, AMD has issued a statement on these matters. Here's the text in full:
Based on feedback from the enthusiast community, we’ve 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 environments.
The range of performance differential is not expected to meaningfully change the user experience but we’ve taken note of recent reports that the degree of variability is 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.
It is important to note that is it to be expected that the more thermally limited the setting the more variation can naturally occur. AMD Radeon R9 290X, by default, ships with two default BIOS settings for different acoustic levels and the "Uber" setting was designed to limit the level of thermal throttling and comparisons in this test mode are more consistent. Furthermore, AMD have implemented comprehensive PowerTune controls within the OverDrive panel of Catalyst Control Center and users can tweak to their own desired balance between acoustics and performance.
Interesting. We'll continue to track this story as it develops. I'm looking forward to seeing what AMD has to say in its next update.
|1. Hdfisise - $600||2. Ryszard - $503||3. Andrew Lauritzen - $502|
|4. the - $306||5. SomeOtherGeek - $300||6. Ryu Connor - $250|
|7. doubtful500 - $200||8. Anonymous Gerbil - $150||9. webkido13 - $135|
|10. cygnus1 - $126|
|Nvidia recalls Shield Tablet due to battery fire risk||37|
|Friday Night Shortbread||46|
|Mozilla CEO protests Win10's default application setup process||104|
|Deals of the week: Samsung's 850 EVO 1TB for $310 and more||47|
|Report: new Google Glass is a clip-on model for businesses||10|
|14 million have upgraded to Windows 10 in its first 24 hours||83|
|EVGA X99 Micro 2 mobo offers USB-C in a microATX package||12|
|The Tech Report Podcast is live on Twitch||6|
|Wake-from-sleep vulnerability leaves UEFIs open to attack||47|