HP EliteBook 840 G1 Drivers Download - HP EliteBook 820 G1 and HP EliteBook 840 G1 has a frame of solid materials and lightweight magnesium. Both of these notebooks have been tested durability and certified by MIL-STD 810 test.
The second difference is only on the notebook screen size and availability of the touch screen only. HP EliteBook 840 G1 has a screen size of 12.5