I have an AMD A6 4455M (Trinity).
according to notebookcheck.com this cpu is not a true dual core:
The CPU cores are based on a reworked Bulldozer architecture, called Piledriver. Although marketed as a dual-core processor, the A6-4455M includes only one module with two integer-cores and and floating-point core. As a result, the CPU is not a true dual-core processor.
By using CoreTemp, it reads both cores at ~50 degrees celsius, speccy's readings always double that number.