after installed 8G memory and 240G SSD, it's definitely a very good office computer,its CPU have four cores, its single core score is not good, but multiple core score in benchmark not lose to 2 core i3,most important this little box CPU fan is very quite even when 100% workload, may due to CPU TDP is only 10w,  i3 model TDP is 15w, its fan is a little noisy when CPU is 100%,