Rogue cores from AMD?

Question

AMD

There is an AMD A10-5750M processor, I began to notice low performance for a long time. But now I decided to analyze in more detail and found out one strange thing. So:
In the geekbench, the percent in a single thread scored ~1650 points, but in the multithread - ~4100. It is logical that since one core gives 1650, then four should give (1650 * 4) = 6600!
For example, let's take an analog from Intel: i5 4200U (dual-core processor) we get (judging by the tests ) - 2538 per core, and in multithreading (2538 * 2 = 5076) - 4524 - slightly less, but even in this situation it makes amudia .
At first I thought that the frequency sags on the remaining cores, but no, for the entire time in the test, the frequency of all cores was kept at ~ 2.5 GHz.
What is it? AMD decided to cheat again? Or am I not understanding something?

Answer 1

Yes .