I have the AMD A8-6600k cpu and it supposed to be a 4cores 4 threads proccesor.BUT in window's task manager says that the cpu only got 2 cores and 4 logical threads.Should I worry for this?
The A8-6600K has four CPU cores. Windows incorrectly reads it as 2 cores and 4 logical threads.
CPU-Z will correctly confirm the number of CPU cores present on your APU.
It does that because it shares CU's (compute units or L2 Cache) between 2 cores. The 8 core FX processors show as 4 core 8 thread but are not hyper threading either.