The various sub-species of human race DNA may be slightly different according to EQ. But historic fact is evidence of the difference.
The Mongoloid and Austronesian haplogroup C split ~36,000 ybp and populated regions of Central Asia, Australia and Oceania. Haplogroup DE split to D and E around 42,000 ybp, populates from North Africa to the west to Korea and Japan to the east.
A fair barometer of genetic intelligence might be a list of cities and countries decimated by the negro sub-species. The negro has +1000 generations in some of these locations(interupted by a few hundred years of caucasion prosperity).
And yet only +10 generations to ruination in others.
the short list...

Portugal - Once a 16th century world power with colonies around the world - moor/negro slave interbreeding after 400 years has left it with a 40% illiteracy rate. The most backward country in Europe. Slow mongrelization without a shot being fired.
Haiti
Rhodesia now Zimbabwe
Angola now ndongo
Mozambique
Northern Rhodesia now Zambia
Somolia Morovia, Liberia


South Africa - 15 year negro violent genocide of Caucasions, When we had Apartheid in South Africa for 42 years there was hardly any crime at all.
......................Apartheid.........14 years of Black rule
Murder................5 monthly.........66 monthly
Rape..................7 monthly.........4700 monthly
Rape of White women...5 yearly..........300 monthly
General theft...........................7000% increase
UN has given South Africa a Genocide Watch rating of 5 out of 7 for black on white Genocide.

Portugal
Somalia
Kenya
Detroit - 82% negro population
Chicago South Side
New Orleans
Memphis
St Louis
Atlanta - negroes are 54 percent of the population, responsible for 100 percent of homicide, 95 percent of rape, 94 percent of robbery, 84 percent of aggravated assault, and 93 percent of burglary