Big PC

Intel(R) Core(TM) i3-7100 CPU @ 3.90GHz (3916Ггц), L2 = 256x4
Threads: 1
Time: 1172
Threads: 2
Time: 1328
Threads: 4
Time: 1563

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HP Envy notebook:

Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz (2398Ггц), L2 = 256x8
Threads: 1
Time: 1250
Threads: 2
Time: 1282
Threads: 4
Time: 1609
Threads: 1
Time: 1218
Threads: 2
Time: 1250
Threads: 4
Time: 1594

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Asus all-in-one

Intel(R) Core(TM) i3-3220T CPU @ 2.80GHz (2837Ггц), L2 = 256x4
Threads: 1
Time: 1453
Threads: 2
Time: 1485
Threads: 4
Time: 2156
Threads: 1
Time: 1437
Threads: 2
Time: 1438
Threads: 4
Time: 2140