For some reason the GPGPU Benchmark screen shows different specs for the Intel HD4400 iGPU compared to what the GPU section in the main AIDA64 program shows.
GPGPU Bench lists 12 CU/48 cores
GPU page lists 20 EU/80 cores
As far as I am aware, the 20EU/CU listed on the GPU page is the correct configuration for HD4400 (as well as HD4200 and HD4600).
I also have a Haswell Pentium. That chip shows the same, (correct) value (10EU/CU) on both the GPU and GPGPU bench pages.