Benchmarking the capabilities of your OpenCL device with clpeak, etc.

In case you're interested in benchmarking the performance of your GPU/CPU with OpenCL you could try a simple program named clpeak. It's hosted on github: https://github.com/krrishnarraj/clpeak

For instance here is the output on the A4-1450 APU.

Platform: AMD Accelerated Parallel Processing
  Device: Kalindi
    Driver version : 1214.3 (VM) (Linux x64)
    Compute units  : 2

    Global memory bandwidth (GBPS)
      float   : 6.60
      float2  : 6.71
      float4  : 6.45
      float8  : 3.51
      float16 : 1.83

    Single-precision compute (GFLOPS)
      float   : 100.63
      float2  : 101.26
      float4  : 100.94
      float8  : 100.32
      float16 : 99.08

    Double-precision compute (GFLOPS)
      double   : 6.35
      double2  : 6.37
      double4  : 6.36
      double8  : 6.34
      double16 : 6.32

    Integer compute (GIOPS)
      int   : 20.33
      int2  : 20.39
      int4  : 20.36
      int8  : 20.33
      int16 : 20.32

    Transfer bandwidth (GBPS)
      enqueueWriteBuffer         : 1.80
      enqueueReadBuffer          : 1.98
      enqueueMapBuffer(for read) : 84.42
        memcpy from mapped ptr   : 1.81
      enqueueUnmap(after write)  : 54.32
        memcpy to mapped ptr     : 1.87

    Kernel launch latency : 138.08 us

  Device: AMD A6-1450 APU with Radeon(TM) HD Graphics
    Driver version : 1214.3 (sse2,avx) (Linux x64)
    Compute units  : 4

    Global memory bandwidth (GBPS)
      float   : 1.97
      float2  : 2.51
      float4  : 1.95
      float8  : 2.79
      float16 : 3.54

    Single-precision compute (GFLOPS)
      float   : 1.30
      float2  : 2.50
      float4  : 5.01
      float8  : 9.21
      float16 : 1.07

    Double-precision compute (GFLOPS)
      double   : 0.62
      double2  : 1.35
      double4  : 2.56
      double8  : 6.27
      double16 : 2.44

    Integer compute (GIOPS)
      int   : 1.60
      int2  : 1.22
      int4  : 4.70
      int8  : 8.08
      int16 : 7.91

    Transfer bandwidth (GBPS)
      enqueueWriteBuffer         : 2.67
      enqueueReadBuffer          : 2.03
      enqueueMapBuffer(for read) : 13489.22
        memcpy from mapped ptr   : 2.02
      enqueueUnmap(after write)  : 26446.84
        memcpy to mapped ptr     : 2.03

    Kernel launch latency : 32.74 us

P.S.
1) Some performance measures of the recently released Kaveri APU are provided on Anandtech:
http://www.anandtech.com/show/7711/floating-point-peak-performance-of-kaveri-and-other-recent-amd-and-intel-chips
2) If you are interested you can find the presentation of the Kaveri on Tech-Day in PDF format here:
http://www.pcmhz.com/media/2014/01-ianuarie/14/amd/AMD-Tech-Day-Kaveri.pdf
3) The Alpha 2 of Ubuntu 14.04 seems to resolve the shutdown problem of the Temash laptop (Acer Aspire v5 122p). It must be due to the 3.13 kernel update. So, I'm looking forward to the final Ubuntu 14.04 release.