Sunday 13 April 2014

AMD Athlon AM1 5350 APU


  • AMD resurrects the Athlon and Sempron branding for Kabini-powered APUs. The Athlon duo and Sempron 3850 all use a quad-core Jaguar CPU configuration in concert with Radeon R3 (GCN) Graphics that are home to two compute units (CUs), totalling 128 cores. The Sempron 2650, meanwhile, uses two CPU cores but retains the full complement of R3 Graphics.
      Jaguar also embraces all of the latest instruction sets. This includes BMI, AVX, FC16, SSE 4.2, and AES. Unlike Bulldozer and its variants, Jaguar does not utilize a “modular” architecture. Each core in Jaguar is self sufficient with its own floating point unit, as compared to the shared unit with each dual core “module” in Bulldozer / Piledriver / Steamroller. The only thing shared is the decently sized L2 cache, which is 2 MB in size. Caches typically use up a lot of power, so the smaller the L2 cache the better



    • Kabini sports the latest iteration of AMD’s GCN architecture. It has support up to DX 11.2, OpenGL 4.3, and OpenGL ES 3.0. Kabini is not fully HSA compliant, but it does support a lot of HSA-like features. It fully supports OpenCL 1.2, DirectCompute, and C++AMP. All of the HSA optimizations in Kaveri did not trickle down to Kabini, but for a product in this particular niche, this is not necessarily a disadvantage. Kabini features 2 GCN compute cores with 128 stream units. In this case there are 4 x 16 wide vector units per compute core with a scalar co-processor. Multimedia features include UVD 4.2 (Universal Video Decoder) and VCE 2.0 (Video Coding Engine).

    Athlon 5350Athlon 5150Sempron 3850Sempron 2650
    CPU Cores4442
    Clock Rate2.05 GHz1.6 GHz1.3 GHz1.45 GHz
    GPU Frequency600 MHz600 MHz450 MHz400 MHz
    Memory Data Rate1600 MT/s1600 MT/s1600 MT/s1333 MT/s
    Total Cache2 MB2 MB2 MB1 MB
    TDP25 W25 W25 W25 W
    AMD is shipping AM1-capable APUs under the company's Athlon and Sempron brands. Currently, all of the available models are rated for 25 W and feature 128 shaders, although the graphics engine ranges from 400 to 600 MHz, depending on the specific implementation. Three of the four chips come with four cores and 1600 MT/s memory support, while the lowest-priced Sempron 2650 is a dual-core version with a 1333 MT/s transfer rate cap. Core frequencies range from 1.3 to 2.05 GHz, which does serve to hold back performance. Then again, Intel is shipping similar to slightly higher clock rates on its Silvermont-based 

    Pentium J2900Celeron J1900Celeron J1800
    CPU Cores442
    Base/Turbo Boost Clock Rate2.41/2.67 GHz2/2.42 GHz2.41/2.58 GHz
    Dynamic GPU Clock Range688/896 MHz688/854 MHz688/792 MHz
    Memory Data Rate1333 MT/s1333 MT/s1333 MT/s
    Total Cache2 MB2 MB1 MB
    TDP10 W10 W10 W
    AMD and Intel are topping out with four cores (the Jaguar architecture can continue scaling, as it does in the Xbox and PlayStation, while Silvermont does as well in the Atom C2000 family). Intel's solution uses less power. However, the company's HD Graphics engine is also less capable. And memory support is limited to 1333 MT/s across the Bay Trail-D platform.






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