GTX Titan Black 4-way SLI Review At Hardware.info
Hardware.info take not one, not two or even three - but four GTX Titan Black's and SLI'd them to the teeth in an overclocked ASUS P9X79 Deluxe motherboard. They've got the technical details, a bit of video and then lots of testing over 3DMark, Crysis 3, Far Cry 3, Metro Last Light, Assassin's Creed 4, Battlefield 4 and GPGPU benchmarks too as the Titan Black (again) has the full double floating point precision performance of Tesla cards, rather than limited as on other standard Nvidia gaming cards.
Hardware.info also push the LGA2011 CPU to 5GHz on that P9X79 Deluxe to measure the effects of overclocking on supporting that whopper 11,520 shaders and a large 6GB of graphics memory (despite the fact there's 24GB GDDR5 overall, in multi-GPU it's still mirrored).
"Our SLI- and overclocking benchmarks show once again Nvidia's prowess. Particularly in the triple-Full HD benchmarks it is clear a second or even third Titan Black can be of use and don't forget: a 4K screen features even more pixels. However, for gaming applications the GTX 780 Ti makes a much more sensible investment.
That said, it is not that common to see a 3DMark Fire Strike Extreme score of well over 15,000 points appear on the screens of our testing rig at the Hardware.Info test lab, at least not without using LN2. And like we wrote, four GTX Titan Blacks in one system is just incredibly cool."
Read the quad Titan Black review here.