Tesla K20s


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  • Product Overview

    The NVIDIA Tesla K20s graphic card was introduced into the market on February 2013. This video card is powered by 2496 cores each running at a clock speed of 706 MHz. The Tesla K20s integrates a 5120 MB GDDR5 memory. This graphic card memory can achieve a bandwidth of 208 GB/s.

    Performance And Power

    As an indicator of computing performance, the Tesla K20s can deliver up to 3524.35 GFLOPS of single precision computing power. Furthermore, the graphic performance of this video card shows a pixel fill rate of 28.24 Gigapixels/s and a texture fill rate of 146.85 Gigatexels/s. The Tesla K20sgraphic card draws a power of up to 225 W.

    Display Support

    The Tesla K20s video card is compatible with motherboards with PCI-E 2.0 x 16 support.

    Software Support

    As per the software support, it can support the following programming interfaces and libraries: " DirectX 11.0, OpenCL 1.1, Shader Model 5.0 ". OpenGL is a cross language and multi-platform application programming interface for rendering 2D and 3D vector graphics. OpenGL is used to interact with a GPU to harness Hardware-accelerated rendering and eliminates the need to recompile shaders making it an efficient and performance oriented standard. Microsoft DirectX is an Application programming Interface for the Windows operating systems which Integrates well with AMD and NVIDIA GPUs. The Microsoft DirectX 10 is a significant step in 3D graphics. It features a highly optimized runtime, powerfull geometry sharders, and many other features. The Microsoft DirectX 11, introduced with Windows 7, brings numerous improvement over its precedessor DirectX 10. It is designed to be more efficient, supports sophisticated shading and texturing techniques and levearage the use of multi processors, resulting in smoother 3D animations. The open computing language (OpenCL) is programming interface used for general purpose programming across CPUs and GPUs and other processors. The standard gives developers the portability and efficiency of heterogeneous processing platforms.


  • GPU Overview:

    Manufacturer   NVIDIA  
    Target Device   Server High Performance Computing  
    Release Date   February 2013  
    Price at launch   3199  

    GPU Engine:

    CUDA Cores   2496  
    Graphics Clock   706 MHz 


    Single Precision Compute Power   3524.35 GFLOPS 
    Pixel Fill Rate   28.24 Gigapixels/s 
    Texture Fill Rate   146.85 Gigatexels/s 


    Memory Size   5120 MB 
    Memory Interface   GDDR5  
    Memory Interface width   320 bit 
    Effective Memory Clock   5200 Mhz 
    Memory Bandwidth   208 GB/s 

    Feature Support:

    Bus Interface   PCI-E 2.0 x 16  
    DirectX   11.0  
    OpenCL   1.1  
    Shader Model   5.0  

    Display Support:

    External connectors:

    Power Connectors   2 x 6-pin  

    Power and Thermal:

    Maximum Power Draw   225 W 


    Length   10.51 inches 267 mm  
    Width   Dual-Slot  


    Architecture   Kepler  
    Fabrication process   28 nm 
    Number of Transistors   7.08 billion  
    Die name   GK110  
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