Overclocking

Finally, no review of a high-end video card would be complete without a look at overclocking performance.

Of all of the Fiji cards overclocking the R9 Nano is perhaps the easiest and certainly the most unusual. Due to the fact that the card is essentially a 1000MHz Fiji card with a heavy power throttle, the card is already validated for clockspeeds that under load it doesn’t have the available power to reach. As a result while one can crank up the clockspeeds, the card isn’t going to move until you increase the power limit. And even then you are more likely to hit the power cap again than you are to break 1000MHz sustained. So overclocking the GPU is something of an academic affair.

Radeon R9 Fury/Nano Series Overclocking
  Ref. R9 Fury X ASUS R9 Fury Ref. R9 Nano
Boost Clock 1125MHz 1075MHz 1075MHz
Memory Clock 1Gbps (500MHz DDR) 1.1Gbps (550MHz DDR) 1.1Gbps (550MHz DDR)
Power Limit 100% 115% 135%
Max Voltage 1.212v 1.169v 1.2v

Overall we were able to overclock our sample to 1075MHz on the GPU and 550MHz (1.1Gbps) on the memory. However load clockspeeds were almost always under 1000MHz even with a generous 35% increase in the power target. Overdrive does allow for a larger increase – up to 50% – but with the R9 Nano featuring a less robust power delivery system designed to push less power than R9 Fury or R9 Fury X, we’re hesitant to increase the limit further without a better idea of what the card can safely sustain for extended periods of time.

OC: Battlefield 4 - 3840x2160 - Ultra Quality - 0x MSAA

The overall performance gains from overclocking aren’t huge, but at 7-10% they also aren’t too shabby. However since higher clockspeeds quickly ramp up the power requirements due to the higher voltages required, the performance gains won’t be anywhere near the 35% increase in the power limit, despite that we are in fact still power limited.

Meanwhile the 35% increase in the power limit has a definite knock-on effect on the cooling system. The R9 Nano’s cooler is able to keep up with the additional load, holding temperatures to 74C, but noise levels are now over 51dB(A). Power consumption at the wall is similarly affected, with the R9 Nano essentially giving up all of its energy efficiency gains in the process.

Power, Temperature, & Noise Final Words
Comments Locked

284 Comments

View All Comments

  • LoneWolf15 - Thursday, September 10, 2015 - link

    And as someone who has been a long time TR reader and has met him multiple times, I am in complete disagreement with you. His testing is some of the most detailed and accurate that I know.

    I have little faith in your ability to determine someone's subliminal gifts.
  • Kutark - Thursday, September 10, 2015 - link

    Unfortunately a great many people are incapable of projecting their own biases onto someone else. Tomshardware and Anandtech have been accused of being pro one team or the other for years.

    I remember an article i read a few years back, i wish i could remember the guys name, but he was chief editor for one of the macintosh magazines, and he was talking about how he got so fed up with users because if he said literally anything negative about the product he would get his email inbox blown up with accusations of being a MS nutswinger, and fellating Bill Gates, and various other things. He gave an example of one of the ipods which he gave like a 90%+ review, and the ONLY negative things he said was that the casing was shiny, so it took fingerprints really well and was hard to keep looking clean, and that he wished the battery life was a little bit longer. He said he got the most vitriolic and ridiculous emails he'd ever seen.

    The problem is people want confirmation that they made the right choice, and if they don't get that, then rather than admit that they made a mistake, they would rather attack the reviewer as being a fanboy or something equally hideous.
  • medi03 - Friday, September 11, 2015 - link

    In Fermi times Anand found it "appropriate" to compare cherry picked OCed nVidia card vs stock AMD.

    "Subtle bias" my ass.
  • Ryan Smith - Friday, September 11, 2015 - link

    It's something we've apologized for, repeatedly. It was a poor idea and we readily admit as much.

    http://www.anandtech.com/show/3988/the-use-of-evga...
  • mapesdhs - Monday, September 14, 2015 - link

    I never saw the need to apologise; the price of the FTW meant it was the far better choice to buy back then (I bought two for SLI).
  • fuicharles - Friday, September 11, 2015 - link

    I used to go to The Tech Reports to read the Top News contents everyday. Their Top News was always updated and shared lots of recent development.

    However, recently something fishy, Tech Reports doesn't share any news on the recent Gamesworks and Asyn Compute tragedy in their sites.

    And try to pin point the Pump Whine problem even after AMD has already come up new revision of Fury Card which solve the problems.

    I don't want to believe Scott Wasson is biased either, but isn't that as a journalist you should share the bad/good for both camp to let the readers judge themselves
  • milli - Friday, September 11, 2015 - link

    'most detailed and accurate' ≠ unbiased
    Don't worry that you didn't notice the hidden bias. It took me a while to realize it. After reading TR for a couple years, around 2006 I started noticing the bias. It's not what he says that's biased but what he doesn't say/report that makes him biased. He's smart.
    Well he's getting better at hiding his bias these last years. In the previous decade he would often pit OC'd nVidia cards with stock AMD cards in his 'reviews'.
    Just like many knew that Anand was biased towards Apple with his ridiculously positive reviews until the final proof came when he went to actually work for them.
  • slickr - Saturday, September 12, 2015 - link

    He has been shilling for Nvidia for good several years now, everything Nvidia does = great, amazing, unique, always winning in some ultra specific aspect even if realistically the card is garbage, when he talks about AMD = power consumption is 10W or 20W more than Nvidia, Nvidia clear winner, price and performance don't matter, only those 10W difference matters.

    No way for AMD to win, I would have not sent review copies to a whole more websites, there are at least 4-5 of top of my head that are Nvidia shill town and they not even doing it subtly.
  • althaz - Monday, September 14, 2015 - link

    nVidia have had a lead in performance for half a decade or more now - it's not tech reviewers fault that AMD are using more power to deliver worse performance at similar prices.
  • chrnochime - Saturday, September 12, 2015 - link

    And we're suppose to have faith in YOUR view of SW? LOL

Log in

Don't have an account? Sign up now