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
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  • Will Robinson - Thursday, September 10, 2015 - link

    Yup,I agree.
    Dammed with faint praise is the best you'll see for AMD cards there.
    Their comments section is an NV fanboy fest led by Chuckula/Chizow and approved by TR.
  • silverblue - Friday, September 11, 2015 - link

    Semiaccurate would've most likely gone the same way had Charlie not locked it all down to subscribers. The only downside is the lack of a daily drashek fix.

    I think wccftech is another of chizow's haunts, but don't quote me on that.
  • Gasaraki88 - Friday, September 11, 2015 - link

    Oh come on. AMD didn't give a card to Kyle from HardOCP also. So you're saying all the review sites out there are bias against AMD?
  • jardows2 - Friday, September 11, 2015 - link

    After reading several recent H's reviews of AMD products, where their testing shows the AMD card slightly slower than the nVidia product, then the conclusion stating the AMD product is a piece of trash and not worth anyone's money, without any of their own testing data backing up such a harsh conclusion, I don't blame AMD for not sending them a card.
  • Alexvrb - Friday, September 11, 2015 - link

    Yeah I kind of saw that one coming. I still read H sometimes, but you really have to draw your own conclusions and keep the salt handy. With TR, it's not only what they report, it's what they refuse to report. It's far from the worse, but there's a pattern.

    AT is my favorite overall, anyway.
  • InquisitorDavid - Saturday, September 12, 2015 - link

    I don't know what your level of 'recent' is, but the R9 380 and R9 390x both got decent reviews. The 390x got a silver award, basically being touted as a cheaper, more power-hungry 980 with more VRAM (truth), and the R9 380 was given a Gold award because it performed better than a 960 at the same price range.

    The Fury got no awards for being on-par with the stock 980, while costing more. They saw the 390x having better value (thus the silver award), despite the increased power draw.

    If anything, AMD has been getting a lot of crap because they've been losing for a while now. Less efficiency, rebrands, and all. OC'ing the 390x gets it to the same level as a 980 reference, and will consume about 200w more. It's cheaper, however, and we all know that's what AMD has been doing for a while now - value for money. It's the only battlefield they can claim any sort of real victory on. With the Fury and Nano, that gets completely thrown out the window.

    The Fury X was hamstrung by the release of the 980ti (which was clearly a blocking maneuver by NV). Without the 980ti, it would've been the king of value. The "overclocker's dream" statement was still a bald-faced lie.
  • althaz - Monday, September 14, 2015 - link

    If prices are equal and the AMD card is slightly slower, then the AMD card *IS* worthless. Who would pay the same money to get slightly worse performance and use more power? Only idiots.
  • althaz - Monday, September 14, 2015 - link

    Anybody that hasn't been pro-nVidia for the past few years has been doing it wrong. AMD have been using more power to offer less performance (at similar prices) - they have been behind for *ages* now. They still are, but at least it looks like HBM will bring the performance needed (next generation probably, it's obviously not there yet).
  • anubis44 - Thursday, October 8, 2015 - link

    I like TechReport, and find their coverage of tech very detailed, but yes, I have to agree with you that they've essentially been portraying AMD as just not quite as good as nVidia, yet all the while minimizing or ignoring the Green Goblin's dubious business practices ($200 G-Sync tax) and misrepresentation of their products (the 3.5GB GTX970 that somehow didn't completely torpedo that card's recommendation).
  • Frenetic Pony - Thursday, September 10, 2015 - link

    I've looked at Tech Report, fuck Tech Report. None of their tests seem to reflect anyone elses, I tried a few of the graphs and they're literally a statistical outlier (at least for my quick tests).

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