The AMD Radeon R9 Fury X Review: Aiming For the Top
by Ryan Smith on July 2, 2015 11:15 AM ESTOverclocking
Finally, no review of a high-end video card would be complete without a look at overclocking performance.
To get right to the point here, overclockers looking at out of the box overclocking performance are going to come away disappointed. While cooling and power delivery are overbuilt, in other respects the R9 Fury X is very locked down when it comes to overclocking. There is no voltage control at this time (even unofficial), there is no official HBM clockspeed control, and the card’s voltage profile has been finely tuned to avoid needing to supply the card with more voltage than is necessary. As a result the card has relatively little overclocking potential without voltage adjustments.
So what do we get for overclocking?
| Radeon R9 Fury X Overclocking | ||||
| Stock | Overclocked | |||
| Boost Clock | 1050Mhz | 1125MHz | ||
| Memory Clock | 1Gbps (500MHz DDR) | 1Gbps (500MHz DDR) | ||
| Max Voltage | N/A | N/A | ||
Our efforts net us 75MHz, which is actually 25MHz less than what AMD published in their reviewer’s guide. Even 100MHz would lead to artifacting in some games, requiring that we step down to a 75MHz overclock to have a safe and sustainable overclock.
The end result is that the overclocked R9 Fury X runs at 1125MHz core and 1Gbps memory, a 75MHz (7%) increase in the GPU clockspeed and 0% increase in the memory clockspeed. This puts a very narrow window on expected performance gains, as we shouldn’t exceed a 7% gain in any game, and will almost certainly come in below 7% in most games.
Our gaming benchmarks find just that. A few percent performance improvement there, a 5% improvement there. Overall we wouldn’t go as far as saying there no reason to overclock, but with such limited gains it’s hardly worth the trouble right now.
True overclocking is going to have to involve BIOS modding, a riskier and warranty-voiding strategy, but one that should be far more rewarding. With more voltage I have little doubt that R9 Fury X could clock higher, though it’s impossible to guess by how much at this time. In any case the card is certainly built for it, as the oversized cooler, high power delivery capabilities, and dual BIOS switch provide all the components necessary for such an overclocking attempt.
Meanwhile HBM is a completely different bag, and while unofficial overclocking is looking promising, as a new technology it will take some time to get a good feel for it and understand just what kind of performance improvements it can deliver. The R9 Fury X is starting out with quite a bit of memory bandwidth right off the bat (512GB/sec), so it may not be bandwidth starved as often as other cards like the R9 290X was.
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D. Lister - Thursday, July 2, 2015 - link
"AMD had tessellation years before nVidia, but it went unused until DX11, by which time nVidia knew AMD's capabilities and intentionally designed a way to stay ahead in tessellation. AMD's own technology being used against it only because it released it so early. HBM, I fear, will be another example of this. AMD helped to develop HBM and interposer technologies and used them first, but I bet nVidia will benefit most from them."AMD is often first at announcing features. Nvidia is often first at implementing them properly. It is clever marketing vs clever engineering. At the end of the day, one gets more customers than the other.
sabrewings - Thursday, July 2, 2015 - link
While you're right that Nvidia paid for the chips used in 980 Tis, they're still most likely not fit for Titan X use and are cut to remove the underperforming sections. Without really knowing what their GM200 yields are like, I'd be willing to be the $1000 price of the Titan X was already paying for the 980 Ti chips. So, Nvidia gets to play with binned chips to sell at $650 while AMD has to rely on fully up chips added to an expensive interposer with more expensive memory and a more expensive cooling solution to meet the same price point for performance. Nvidia definitely forced AMD into a corner here, so as I said I would say they won.Though, I don't necessarily say that AMD lost, they just make it look much harder to do what Nvidia was already doing and making bookoo cash at that. This only makes AMD's problems worse as they won't get the volume to gain marketshare and they're not hitting the margins needed to heavily reinvest in R&D for the next round.
Kutark - Friday, July 3, 2015 - link
So basically what you're saying is Nvidia is a better run company with smarter people working there.squngy - Friday, July 3, 2015 - link
"and they cost more per chip to produce than AMD's Fiji GPU."Unless AMD has a genie making it for them that's impossible.
Not only is fiji larger, it also uses a totally new technology (HBM).
JumpingJack - Saturday, July 4, 2015 - link
"AMD had tessellation years before nVidia, but it went unused until DX11, by which time nVidia knew AMD's capabilities and intentionally designed a way to stay ahead in tessellation. AMD's own technology being used against it only because it released it so early. HBM, I fear, will be another example of this. AMD helped to develop HBM and interposer technologies and used them first, but I bet nVidia will benefit most from them."AMD fanboys make it sound like AMD can actually walk on water. AMD did work with Hynix, but the magic of HBM comes in the density from die stacking, which AMD did nothing (they are no longer the actual chipmaker as you probably know). As for interposers, this is not new technology, interposers are well established techniques for condensing an array of devices into one package.
AMD deserves credit for bringing the technology to market, no doubt, but their actually IP contribution is quite small.
ianmills - Thursday, July 2, 2015 - link
Good that you are feeling better Ryan and thanks for the review :)That being said Anandtech needs keep us better informed when things come up.... The way this site handled it though is gonna lose this site readers...
Kristian Vättö - Thursday, July 2, 2015 - link
Ryan tweeted about the Fiji schedule several times and we were also open about it in the comments whenever someone asked, even though it wasn't relevant to the article in question. It's not like we were secretive about it and I think a full article of an article delay would be a little overkill.sabrewings - Thursday, July 2, 2015 - link
Those tweets are even featured on the site in the side bar. Not sure how much clearer it could get without an article about a delayed article.testbug00 - Sunday, July 5, 2015 - link
Pipeline story... Dunno title, but, for text, explain it there. Have a link to THG as owned by same company now if readers want to read a review immediately.Twitter is non-ideal.
funkforce - Monday, July 6, 2015 - link
The problem isn't only with the delays, it is that since Ryan took over as Editor in Chief I suspect his workload is too large.Because this also happened with the Nvidia GTX 960 review. He told 5-6 people (including me) for 5 weeks that it would come, and then it didn’t and he stopped responding to inquires about it.
Now in what way is that a good way to build a good relationship and trust between you and your readers?
I love Ryan's writing, this article was one of the best I've read in a long time. But not everyone is good at everything, maybe Ryan needs to focus on only GPU reviews and not running the site or whatever his other responsibilities are as Edit. in Chief.
Because the Reviews are what most ppl. come here for and what built this site. You guys are amazing, but AT never used to miss releasing articles the same day NDA was lifted in the past that I can remember. And promising things and then not delivering, sticking your head in the sand and not even apologizing isn’t a way to build up trust and uphold and strengthen the large following this site has.
I love this site, been reading it since the 1st year it came out, and that's why I care and I want you to continue and prosper.
Since a lot of ppl. can’t reed the twitter feed then what you did here: http://www.anandtech.com/show/8923/nvidia-launches...
Is the way to go if something comes up, but then you have to deliver on your promises.