The Titan's fan profile is also extremely timid, just by adjusting the profile to avoid throttling at 80C the card becomes blatantly more audible. So in a quirky fairly small kind of way it's quite deceiving. The build quality is far better though, that is undeniable. Not £400 better mind you
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Sorry didn't see this. As above really...
When the stock fan profile is set and the target temperature is left at 80C, a single Titan will have no problem being completely silent even in GPU heavy games like Battlefield 4 (beta at least). However if you monitor the GPU clocks they throttle fairly heavily off boost in order to do this. Arguably as long as the performance is still acceptable this isn't an issue, but still worth pointing out. To maintain boost you can either raise the target temp between 85-90C which assists in throttling or create a custom fan profile to keep the temps lower. If you're in SLi though this in my experience on the reference cooler proves futile as there is simply too much heat for the cards to disperse. So it's better to simply stick with the stock profile, have it be silent and let it throttle when it needs to.
So basically it's not all rosy having Titan e-peen.