The Radeon R9 280X Review: Feat. Asus & XFX - Meet The Radeon 200 Series
by Ryan Smith on October 8, 2013 12:01 AM ESTOverclocking
With our look at the stock performance of our 280X cards complete, let’s take a brief look at overclocking.
When it comes to overclocking this is going to be a somewhat unfair competition for the two cards. The Asus card has by the very necessity of its existence already been binned. Furthermore while the Asus card supports voltage adjustments the XFX card does not (MSI Afterburner says it does, but adjusting the value has no effect). As such we get to drive what’s already a better GPU harder and with more voltage than the other. Still, this will give us the chance to see where everything will top out at.
| Radeon R9 280X Overclocking | ||||
| XFX Radeon R9 280X DD | Asus Radeon R9 280X DCU II TOP | |||
| Shipping Core Clock | 850MHz | 970MHz | ||
| Shipping Boost Clock | 1000MHz | 1070Mhz | ||
| Shipping Memory Clock | 6GHz | 6.4GHz | ||
| Shipping Boost Voltage | 1.2v | 1.2v | ||
| Overclock Core Clock | 880MHz | 1010MHz | ||
| Overclock Boost Clock | 1030MHz | 1110MHz | ||
| Overclock Memory Clock | 6.6GHz | 6.8GHz | ||
| Overclock Max Boost Voltage | 1.2v | 1.263v | ||
As it turns out, neither card overclocked by very much. The XFX card, lacking additional voltage, could only do 30MHz more, for a 4% base/3% boost overclock. Better luck was found on the memory with a 600MHz (10%) overclock there. The Asus card meanwhile was good for 40MHz more, for a 4% base/4% boost overclock, while its memory could do an additional 800MHz (13%). But at the same time this required dialing the voltage up to 1.263v – as high as we’re willing to go for this card. The power cost of doing that will be extreme.
With our 280X cards primarily bottlenecked by GPU performance as opposed to memory performance, the performance gains from our overclocking adventure is limited. 3% on average for both cards is 3% for free, but it’s barely a useful overclock. We typically need 5% before overclocks start becoming interesting and significant enough to improve playability or make higher graphical settings practical.
To the credit of the Asus card and its cooler, despite the increased clockspeeds, voltage, and power consumption, it’s able to keep GPU temperatures and load noise to reasonable levels given the circumstances. Still, with the increase in power required to achieve this overclock (particularly in the worst case scenario of FurMark) it’s hard to argue that the additional overclocking was worth the performance gains. With such an extensive factory overclock this is a card that may be better off left at factory clocks.
The XFX card meanwhile suffers much less of a power ramp up due to the lack of voltage control, but we’re still looking at something of a wash on the power/performance front.
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Anand Lal Shimpi - Tuesday, October 8, 2013 - link
Exactly. I helped get the GPU14 data in bench (we'll toss it live at anandtech.com/bench once the smoke cleans) and inserted graphs while Ryan was finishing up the conclusion.Anand Lal Shimpi - Tuesday, October 8, 2013 - link
er smoke clears.just4U - Tuesday, October 8, 2013 - link
You guys have to use your noggin a little bit here and "THINK" This isn't about being told by AMD to get anything out.. Or special relationships. All the review sites (which are likely under restriction) are trying to get their articles out as soon as their allowed. There's a push of initial interest that they capitalize on and being late to the game disappoints the readers who are noticing a new product launch at their shops and etailers and wanting info about it.HisDivineOrder - Wednesday, October 9, 2013 - link
Plus, the free trip to Hawaii has made all the review sites a lot more forgiving lately. That's the best part of the free trip to Hawaii for AMD.They managed to make all the gaming review sites who went look fishy in their bias. In particular, AMD has targeted Anandtech to make them look especially fishy with their "AMD Center." Then when eventually these sites turn against them, they'll have by then had months of Intel and/or nVidia doing what AMD has always wanted: making the review sites look biased.
Then they cut funding in a few months and scream at the top of their lungs how biased review sites are. Shrugging, they'll say, "Just look how AMD, Intel, and nVidia all agree." And it'll all have started with a special advertising arrangement around an "AMD Center" and a free trip to Hawaii.
AMD may not have many resources, but they're savvy in how they're undermining review sites. Of course, they were testing the waters last year with the "review in parts" review of Piledriver. That was just the opening act.
Anand Lal Shimpi - Tuesday, October 8, 2013 - link
We prioritized getting performance data and pages of tech analysis out first before the tables and finishing touches. We have done this in the past with previous AMD/NV reviews, and we always show up in the comments mentioning what we're still working on. The complexity of the launch skyrocketed as we used it as an opportunity to switch to a new (IVB-E) testbed, which meant re-running everything.For whatever reason, in the second half of the year we've been given a ton of stuff to review in a very short period of time (two iPhones in a week, three Samsung devices in 5 days). There's no ad impact here, just our desire to have something up when the NDA lifts. It's an internal policy, nothing more or less.
just4U - Tuesday, October 8, 2013 - link
and it's a good policy..They just listed these products at the computer shop I deal with (under new releases) a few hrs ago.. and my first thought was to come here and see if something was posted as nothing was up 8 hrs ago when I was looking at another article. Sure as hell.. You folks got something up for us to look at. It's timing really.. NDA lifts shops put up pre-orders sites try to get their articles out. Logical progression..
That being said, I don't see to many of these types of articles going up in real time like this.
haha.. I just want to get a look at the XFX card to see if they've made changes.
Da W - Tuesday, October 8, 2013 - link
People just use the comment section or social medias to bitch and moan and cry and criticize at people, yet they don't do shit themselves. Web 2.0 is like a cancer and I'm growing sick of these crybabies.Don't listen to them Anand and keep up the good work.
dragonsqrrl - Tuesday, October 8, 2013 - link
Baseless accusation that doesn't even make any sense.Dug - Tuesday, October 8, 2013 - link
You lead with 'no disrespect' and finish with unfounded accusations.Please worry about yourself and not Anandtech.
Jumangi - Tuesday, October 8, 2013 - link
These aren't new cards. They are basically the same GPU's AMD has been shipping for almost 2 years now and it looks like they are going to try and pass them off again for another year. Why was this treated as some big new thing with a long article and a bunch of benchmarks? This whole thing could have been done in a little 2 paragraph news blurb.Man has PC hardware become so stagnant and boring lately...