"Actually, you only need a 1.0 and 900 SAT score, but only if you're a minority. Otherwise, you need a 4.0 and 2400."
Hopefully that is sarcasm. If that isn't, then there is a great deal of ignorance from a few posters here. Realize that the "URMs" who do get in are at the top of their class, and often doing the best they can from there area. Colleges look for diversity, and so being a URM is not a full foot in, nor would I consider it a factor which can make or break an admissions decision.
Anyone who claims otherwise is obviously upset that they didn't get admitted in, and are simply jealous of the "URMs" who got in because of their actual desire to attend. If you don't have legit reasons in attending a college, or if you simply have the mind set where you believe things are simply "handed down" to a person because of ethnic class, then you need to reassess your personality, and interests as it won't get you far in life with that mentality.
Perhaps try to see things from other directions, other perspectives. Realize that not everyone is fortunate. Some people are born in lower economic conditions and have to overcome alot more than others. There is no excuse to "bash" or call another group inferior. I know it wasn't blatantly stated, but the level of ignorance from various statements so far are utterly ridiculous.
As for this thread's main topic- I believe it depends on a variety of things. Obviously the lower GPA will strongly make that person less competitive in comparison to the various 4.0s who apply. Having strong test scores, great leadership positions, and an awesome essay which meets the characteristics of what a college is looking for can also increase a person's chances despite the GPA. I know if I were an admissions officer I would admit the person who had a 2.9 with volunteer positions, great test scores, and actually tried their best in high school and genuinely wants to go to the college to learn rather than someone who has a 4.0, great test scores, leadership positions "on paper", who simply wants to go because of prestige reasons. Just my two cents.
*Puts on anti-flame suit to prepare for defense on any people who embody the false ideology and misconceptions regarding URMs in college admissions*:P