is this the one with AMD Fusion E450? I was interested on it earlier, but after google I found it is using APU instead of CPU, which is much much slower than 3 to 4 years old CPU? is this true?

APU is a combination of CPU and GPU.
For AMD Zacate, the CPU is weaker than equivalent Intel CPUs, but the GPU is much better...
Despite the CPU performance differences, there won't be much performance differences in real life