5 Replies Latest reply on Apr 22, 2013 11:44 PM by himanshu.gautam

    Difference between rated peak performance and actual performance

    bdoshi

      Hi

       

       

      I am using laptop with RADEON HD-6290. Rated peak performance of gpu is 44 gflops (checked on wikipedia). When i am running OpenCL sample examples (provided by AMD) on gpu, it is giving performance of 5-6 G instructions. Why such a large difference between peak vs actual capacity.

       

      Please find attached file for more detail.

       

      2nd last column is instructions/sec (calculated as Total work item * ALU instructions * 1000 / time (ms)).

      Last column is instructions/sec normalized to 100% ALU busy.