As David said above, if it's a fixed penalty notice it'll probably be 3 points and £100 fine, I think the max points they can issue is 6 but that's is extreme circumstances.

I got caught doing around 52 in a 40 limit a couple of years ago and got 3 points and a £100 fine. First ever points in over 30 years of driving so it annoyed me no end and no option to do a speed awareness course.

As an aside I've just noticed that the points stay on your licence for 4 years these days, I always thought it was 3.

Cheers,
Gary