Below is the picture of system stats (on desktop) which i am using
& below is (on laptop)
Comparing performance, the desktop performs well & fast, smooth.
not sure how ? any thoughts on this ?
According to this website that compares the two processors, the difference is most likely because of the processors. The Pentium ranks much faster than the Celeron.
However, there are both differences in hardware and software. The only way to gauge the performance of the hardware would be to install the same software on both computers. Conversely, the only way to gauge the performance of the software would be to install and test both versions of software on each computer individually.
Additionally, sometimes laptops have powersaving features like throttling when the pc is not plugged into an AC outlet. This may or may not be an issue here. There are ways to disable powersaving features to get more performance but that would be more appropriate for a separate question and answer.
