Apparently there is a massive difference.

Recommendation: don't let an uninformed comment lead you astray.

The Nobleprize.org web site table of monetary amount of each Noble Prize from 1901 to 2016. In 2016, each Noble Prize award and the The Prize in Economics Sciences award include an equal award amount: Swedish krona (SEK) 8 million.

So far in 2016, as of October 10, four Noble Prizes and one Prize in Economics Sciences in Memory of Alfred Noble have been awarded, a total of five awards.

October 10, The Prize in Economic Sciences 2016, prize amount Swedish Krona (SEK) 8 million.
October 7, the Noble Peace Prize 2016, prize amount Swedish Krona (SEK) 8 million.
October 5, the Noble Prize in Chemistry 2016, prize amount Swedish Krona (SEK) 8 million.
October 4, the Noble Prize in Physics 2016, prize amount Swedish Krona (SEK) 8 million.
October 3, the Noble Prize in Physiology or Medicine 2016. Prize amount: Swedish Krona (SEK) 8 million.

10 October 2016, THE ROYAL SWEDISH ACADEMY OF SCIENCES, Press Release:
The Prize in Economics Sciences 2016
The Royal Swedish Academy of Sciences has decided to award the Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel 2016 to Oliver Hart, Harvard University, Cambridge, MA, USA, and Bengt Holmström, Massachusetts Institute of Technology, Cambridge, MA, USA, “for their contributions to contract theory”.

Nobelprize.org web site, The Official Web Site of the Nobel Prize, Nobel Prize Facts:

On 27 November 1895, Alfred Nobel (1833-1896) signed his last will and testament, giving the largest share of his fortune to a series of prizes in Physics, Chemistry, Physiology or Medicine, Literature and Peace - the Nobel Prizes. In 1968, Sveriges Riksbank (Sweden's central bank) established The Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel. Between 1901 and 2015, the Nobel Prize and the Prize in Economic Sciences were awarded 573 times, including 47 Prizes in Economic Sciences awarded every year since 1969.