qcmadness

http://www.anandtech.com/show/58 ... tra-rare-ultra-fast

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Traditionally dual-GPU cards have been a mixed bag. More often than not they have to sacrifice a significant amount of single-GPU performance in order to put two GPUs on a single card, and in the rare occasions where that tradeoff doesn’t happen there’s some other tradeoff such as a loud cooler or immense power consumption. NVIDIA told us that they could break this tradition and put two full GTX 680s on a single card, and that they could do that while making it quieter and less power consuming than a dual video card SLI setup. After going through our benchmarking process we can safely say that NVIDIA has met their goals.

From a gaming performance perspective we haven’t seen a dual-GPU card reach the performance of a pair of high-end cards in SLI/CF since the Radeon HD 4870X2 in 2008, so it’s quite refreshing to see someone get so close again 4 years later. The GTX 690 doesn’t quite reach the performance of the GTX 680 SLI, but it’s very, very close. Based on our benchmarks we’re looking at 95% of the performance of the GTX 680 SLI at 5760x1200 and 96% of the performance at 2560x1600. These are measurable differences, but only just. For all practical purposes the GTX 690 is a single card GTX 680 SLI – a single card GTX 680 SLI that consumes noticeably less power under load and is at least marginally quieter too.

http://www.tomshardware.com/reviews/geforce-gtx-690-benchmark,3193.html

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Practically, two GeForce GTX 680s facilitate slightly better performance and they exhaust all of their heat out into the surrounding environment. They’re also scalable at a more granular level. That is to say, if you buy two GeForce GTX 680s today, you could add a third tomorrow and be out-of-pocket for $1500. For most enthusiasts with the right motherboard slot configuration, that’s the smarter play.

But a GeForce GTX 690 is quantifiably quieter than GTX 680s in SLI, even if you have two empty spaces between the cards for ventilation (such is the case with our Gigabyte X79-UD5 test bed). It’s the easiest way to achieve quad-SLI, too, though you’d better be prepared to tackle the thermals inside your chassis with all of the verve of a professional system builder. Overclocking a CPU gets a lot tougher in a bath of GK104 backwash.

http://www.xbitlabs.com/articles ... eforce-gtx-690.html

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Nvidia GeForce GTX 690 2x2 GB is the world’s fastest graphics accelerator being as much as 95% faster than the today’s flagship single-GPU Nvidia product – GeForce GTX 680 2 GB. The new Nvidia creation boasts mind-blowing performance, which is so incredibly high that it simply makes no sense to invest in this card unless your monitor supports resolutions above 1920x1080. And in 2560x1600 resolution, which is currently the highest resolution possible (on single-monitor configurations), GeForce GTX 690 will deliver comfortable gaming experience in any contemporary game even with enable antialiasing. And this performance won’t be excessive in such games as Metro 2033: The Last Refuge or Total War: Shogun 2.