IPhone 4G will have a new Graphics chip

Posted by Stefan on January 9th, 2010 in Cell Phones | No Comments


IPhone 4G has already been in the news lately because of its support to 4G connectivity. Imagination Technologies has releases a brand new mobile GPU, namely PowerVR SGX545 mobile which will be most probably equipped with iPhone 4G. The new mobile has a long list of features including a support for DirectX10.1 API and enhanced support forDirectX10 Geometry Shaders. It also has a support for DirectX10 Data assembler and target resource array.

Other features include enhanced version of line rasterisation, sampling from unresolved MSAA surfaces, order dependent anti-aliased lines based on coverage, filtering support for F16 types of texture and support for DirectX mandated texture formats.Along with supporting full profile for OpenCL 1.0 and 3.2, the new GPU will also have 64-bit integer emulation, 3D texture support, and full 32-bit integer support for mathematical operations and support for rounding the decimal to nearest floating point.

Here’s the full list of features of the PowerVR SGX545:

  • DirectX10.1 API support
  • Enhanced support for DirectX10 Geometry Shaders
  • DirectX10 Data assembler support (Vertex, primitive and instance ID generation)
  • Render target resource array support
  • Full arbitrary non power of two texture support
  • Full filtering support for F16 texture types
  • Support for all DirectX10 mandated texture formats
  • Sampling from unresolved MSAA surfaces
  • Support for Gamma on output pixels
  • Order dependent coverage based AA (anti-aliased lines)
  • Enhanced line rasterisation

Besides full profile OpenCL 1.0 and OpenGL 3.2 support the new GPU will offer a bunch of extra features:

  • Support of round-to-nearest for floating-point math
  • Full 32-bit integer support (includes add, multiply and divide)
  • 64-bit integer emulation
  • 3D texture support
  • Support for the maximum 2D and 3D image sizes specified in the full profile.

Though the availability of this particular GPU in iPhone 4G is doubtful, but the next phone from Apple is certainly going to have better graphics as compared to the previous models. Even iPhone 4G is a hypothetical name for a device which has no existence as of now.

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