The difference of awareness begets the difference in results
彼の = his
意識の差 = difference in consciousness
他の社員 = other office workers / other office staff
とは異なる = differ from / be different from / vary / be unlike
結果の差 = difference in results
もたす = be gotten from / beget / result in / lead to
この例から、いろいろなコンビネーションができます。
The difference in his awesomeness led to a difference in results from the other staff.
His difference in consciousness resulted in a difference in results from the other office workers.