http://nvidianews.nvidia.com/Releases/NVIDIA-Launches-World-s-Fastest-Accelerator-for-Supercomputing-and-Big-Data-Analytics-a66.aspx
Ultimate Performance for Science, Big Data
Based on the NVIDIA Kepler™ compute architecture -- the highest performance, most efficient architecture ever built -- the Tesla K40 GPU accelerator surpasses all other accelerators on two common measures of computational performance: 4.29 teraflops single-precision and 1.43 teraflops double-precision peak floating point performance.
Key features of the Tesla K40 GPU accelerator include:
12GB of ultra-fast GDDR5 memory allows users to process 2X larger datasets, enabling them to rapidly analyze massive volumes of data.
2,880 CUDA® parallel processing cores deliver application acceleration by up to 10X compared to using a CPU alone.
Dynamic Parallelism enables GPU threads to dynamically spawn new threads, enabling users to quickly and easily crunch through adaptive and dynamic data structures.
PCIe Gen-3 interconnect support accelerates data movement by 2X compared to PCIe Gen-2 technology.