Hi,
I just finished to run a benchmark on two different machines, a laptop equipped with an Intel(R) Core(TM) i7-4810MQ CPU @ 2.80GHz and the other is a desktop with an Intel(R) Core(TM) i7-5960X CPU @ 3.00GHz processor. Strangely the laptop outperforms the desktop of a factor grater than 3x. I am using the same compiler version with the same compiling options on the same OS version, i.e, gcc 5.1.0, "-march=native -O3" and Ubuntu 14.04. The code is sequential. Do you have any suggestion?
Best, Gabriele