The result of the benchmark for Xeon system:
The result of the benchmark for i7-4700MQ system:
It seems in spite of the fact that Xeon has much higher clock speed, as much as twice, the Mathematica software performs better on a system with much lower RAM and supposedly weaker CPU! Could somebody explain it to me why the result of the benchmark is as it is? I am wondering if I could buy a cheaper laptop and still Mathematica could have an acceptable performance. It seems stronger CPU does not always lead to a faster computation. If I knew the important factor, I could buy a more suitable laptop for myself.
Here are the timing for each test and a description of the test: