In check the performance of the D630, it is best to compare with their nearest rivals who have same configurations such as the HP Compaq 6515b, the Lenovo ThinkPad T61, and the Lenovo 3000 V100. All these notebooks are having a 2 GHz processor, except the Compaq 6515b's 2.2 GHz processor. The D630 has varied results in this competition, overall its performance is satisfactory.

The D630 is outperformed by its competitors in the multimedia multi-tasking speeds. As it is not a multimedia notebook. On the other hand, the D630 outperforms its competitors when comes to processing Microsoft Office applications. Making the D630 a nice option for people using Microsoft Office applications frequently.

The Dell D630 also outclasses its competitors in the battery life. The D630 offers about 2 hours more than other laptops of its class. Option of adding a bigger battery is also available costing about $100 extra.