Yeah it is, if you actually look at SAT scores
Obviously the scores for blacks and Latinos is gonna be lower, if it wasn't there wouldn't be a need for these programs.
But it's not a dramatic difference.
The average black student has something like a 1400-1450 while the average white near 1500 and average Asian 1550. Where are the vastly unqualified sub-1000 students? And if you've ever taught at a high school (I have), you'll know that the difference between a 1450 student and a 1550 student is absolutely negligible. They're both extremely bright and dedicated.
So evil Affirmative Action was just giving very bright blacks and Latinos a small bump over very bright whites and Asians.