NVIDIA GeForce GTX 690 Review: Ultra Expensive, Ultra Rare, Ultra Fast
by Ryan Smith on May 3, 2012 9:00 AM ESTOverclocking
With the GTX 590 NVIDIA found themselves with a bit of a PR problem. Hardcore overclockers had managed to send their GTX 590s to a flaming death, which made the GTX 590 look bad and required that NVIDIA lock down all voltage control so that no one else could repeat the feat. The GTX 590 was a solid card at stock, but NVIDIA never designed it for overvolting, and indeed I’m not sure you could even say it was designed for overclocking since it was already running at a 365W TDP.
Since that incident NVIDIA has taken a much harder stance on overvolting, which we first saw with the GTX 680. The reference GTX 680 could not be overvolted, with voltage options limited to whatever voltage the top GPU boost bin used (typically 1.175v). This principle will be continuing with the GTX 690; there will not be any overvolting options.
However this is not to say that the GTX 690 isn’t built for overclocking. The GTX 680 still has some overclocking potential thanks to some purposeful use of design headroom, and the GTX 690 is going to be the same story. In fact it’s much the same story as with AMD’s Radeon HD 5970 and 6990, both of which shipped in configurations that kept power consumption at standard levels while also offering modes that unlocked overclocking potential in exchange for greater power consumption (e.g. AWSUM). As we’ve previously mentioned the GTX 690 is designed to be able to handle up to 375W even though it ships in a 300W configuration, and that 75W is our overclocking headroom.
NVIDIA will be exposing the GTX 690’s overclocking options through a combination of power targets and clock offsets, just as with the GTX 680. This in turn means that the GTX 690 effectively has two overclocking modes:
- Power target overclocking. By just raising the power target (max +35%) you can increase how often the GTX 690 can boost and how frequently it can hit its max boost bin. By adjusting the power target performance will only increase in games/applications that are being held back by NVIDIA’s power limiter, but in return this is easy mode overclocking as all of the GPU boost bins are already qualified for stability. In other words, this is the GTX 690’s higher performance, higher power 375W mode.
- Power target + offset overclocking. By using clock offsets it’s possible to further raise the performance of the GTX 690, and to do so across all games and applications. The lack of overvolting support means that there isn’t a ton of headroom for the offset, but as it stands NVIDIA’s clocks are conservative for power purposes and Kepler is clearly capable of more than 915MHz/1019MHz. This of course will require testing for stability, and it should be noted that because NVIDIA’s GPU boost bins already go so high over the base clock that it won’t take much to be boosting into 1.2GHz+.
NVIDIA’s goal with the GTX 690 was not just to reach GTX 680 SLI performance, but also match the GTX 680’s overclocking capabilities. We’ll get to our full results in our overclocking performance section, but for the time being we’ll leave it at this: we hit 1040MHz base, 1183MHz boost, and 7GHz memory on our GTX 690; even without overvolting it’s a capable overclocker.
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CeriseCogburn - Friday, May 4, 2012 - link
I disagreechadwilson - Thursday, May 3, 2012 - link
I have some issues with this article, the first of course being availability. Checking the past week, I have yet to see any availability of the 680 besides $200+ over retail premium cards on ebay. How can you justify covering yet another paper launch card without blaring bold print caveats, that for all intents and purposes, nVidia can't make for a very long time? There is a difference between ultra rare and non-existant.Is a card or chip really the fastest if it doesn't exist to be sold?
Second, the issue of RAM, that's a problem in that most games are 32 bit, and as such, they can only address 3.5GB of RAM total between system and GPU RAM. This means you can have 12GB of RAM on your video card and the best you will ever get is 3GB worth of usage.
Until games start getting written with 64 bit binaries (which won't happen until Xbox 720 since almost all PC games are console ports), anything more than 2-3GB GPU RAM is wasteful. We're still looking at 2014 until games even START using 64 bit binaries.
Want it to change? Lobby your favorite gaming company. They're all dragging their feet, they're all complicit.
Ryan Smith - Thursday, May 3, 2012 - link
Hi Chad;While I'm afraid we're not at liberty to discuss how many 680 and 690 cards NVIDIA has shipped, we do have our ears to the ground and as a result we have a decent idea as to how many have shipped. Suffice it to say, NVIDIA is shipping a fair number of cards; this is not a paper launch otherwise we would be calling NVIDIA out on it. NVIDIA absolutely needs to improve the stock situation, but at this point this is something that's out of their hands until either demand dies down or TSMC production picks up.
-Thanks
Ryan Smith
silverblue - Thursday, May 3, 2012 - link
The 690 is a stunning product... but I'm left wanting to see the more mainstream offerings. That's really where NVIDIA will make its money, but we're just left wondering about supply issues and the fact that AMD isn't suffering to the same degree.CeriseCogburn - Sunday, May 6, 2012 - link
A single EVGA GTX680 sku at newegg has outsold the entire line up of 7870 and 7850 cards combined with verified owners reviews.So if availability is such a big deal, you had better ask yourselves why the 7870 and 7850 combined cannot keep pace with a single EVGA 680 card selling at Newegg.
Go count them up - have at it - you shall see.
108 sales for the single EVGA 680, more than the entire combined lot of all sku's in stock and out of the 7870 and 7850 combined total sales.
So when you people complain, I check out facts - and I find you incorrect and failing almost 100% of the time.
That's what happens when one repeats talking points like a sad PR politician, instead of checking available data.
ltcommanderdata - Thursday, May 3, 2012 - link
Have you considered using WinZip 16.5 with it's OpenCL accelerated file compression/decompression as a compute benchmark? File compression/decompression is a common use case for all computer users, so could be the broadest application of GPGPU relevant to consumers if there is an actual benefit. The OpenCL acceleration in WinZip 16.5 is developed/promoted in association with AMD so it'll be interesting to see if it is hobbled on nVidia GPUs, as well as how well if scales with GPU power, whether it scales with SLI/dual GPU cards, and whether there are advantages with close IGP-CPU integration as with Llano and Ivy Bridge.ViRGE - Thursday, May 3, 2012 - link
Doesn't WinZip's OpenCL mode only work with AMD cards? If so, what use would that be in an NVIDIA review?ltcommanderdata - Thursday, May 3, 2012 - link
I actually don't know if it's AMD only. I know AMD worked on it together with WinZip. I just assumed that since it's OpenCL, it would be vendor/platform agnostic. Given AMD's complaints about use of vendor-specific CUDA in programs, if they developed an AMD-only OpenCL application, I would find that very disappointing.ViRGE - Thursday, May 3, 2012 - link
Going by their website it's only for AMD cards."WinZip has been working closely with Advanced Micro Devices (AMD) to bring you a major leap in file compression technology. WinZip 16.5 uses OpenCL acceleration to leverage the significant power of AMD Fusion processors and AMD Radeon graphics hardware graphics processors (GPUs). The result? Dramatically faster compression abilities for users who have these AMD products installed! "
CeriseCogburn - Friday, May 4, 2012 - link
Oh, amd the evil company up to it's no good breaking of openCL misdeeds again.Wow that's evil- the way it's meant to be unzipped.