We all have been hearing about the drastic power consumption over PCIe by AMD’s new Polaris card RX 480 which now has come to an end as AMD released their Crimson 16.7.1 driver update which solves the issue atleast to a point recommended by SIG,increases performance and also accidentally unlocks a additional low profile mode for the card which when enabled reduces the power consumption at no performance cost.
AMD RX 480 Causing Astronomical Faults For Gamers – PCIe Slots Have Died On High-End Boards
AMD has stated such:

We promised an update today (July 5, 2016) following concerns around the Radeon RX 480 drawing excess current from the PCIe bus. Although we are confident that the levels of reported power draws by the Radeon RX 480 do not pose a risk of damage to motherboards or other PC components based on expected usage, we are serious about addressing this topic and allaying outstanding concerns. Towards that end, we assembled a worldwide team this past weekend to investigate and develop a driver update to improve the power draw. We’re pleased to report that this driver—Radeon Software 16.7.1—is now undergoing final testing and will be released to the public in the next 48 hours.
In this driver we’ve implemented a change to address power distribution on the Radeon RX 480 – this change will lower current drawn from the PCIe bus.
Separately, we’ve also included an option to reduce total power with minimal performance impact. Users will find this as the “compatibility” UI toggle in the Global Settings menu of Radeon Settings. This toggle is “off” by default.
Finally, we’ve implemented a collection of performance improvements for the Polaris architecture that yield performance uplifts in popular game titles of up to 3%. These optimizations are designed to improve the performance of the Radeon RX 480, and should substantially offset the performance impact for users who choose to activate the “compatibility” toggle.
AMD is committed to delivering high quality and high performance products, and we’ll continue to provide users with more control over their product’s performance and efficiency. We appreciate all the feedback so far, and we’ll continue to bring further performance and performance/W optimizations to the Radeon RX 480.

The difference :

Images by PCWorld.

Also,as quoted by Brad Chacos from PCWorld:

As you can see, Radeon Crimson 16.7.1 doesn’t hinder performance whatsoever. In fact, in most scenarios performance actually improves thanks to optimizations made in the driver—even when the more stringent Compatibility mode is enabled. Bravo!

Speaking of the performance increase,the card performs more with the new Crimson 16.7.1 than the old 16.6.2 even when the low profile is activated.
And the power draw issue has been fixed at least measured by PCPer and Tom’s Hardware when using the latest drivers.

Image by Tom’s Hardware.

It is also declared that there’s been 1.8% increase power consumption for a 3% of overall increase is performance with the help of the new driver which allows the card to run at a bit higher clock speeds.

So we recommend to try out the new Crimson 16.7.1.


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