I heard sb. said the GTX 675MX comes with stock high-end iMac 27" is a actually a 680M, according to Nvidia's specs. Is that true?
Looking at the number of CUDA cores, memory and shader clock. It seems so.
I don't know why Apple would list it as 675MX. But I guess it's to make the 680MX more desirable upgrade.
I guess a mere "X" upgrade wouldn't entice people to choose 680MX over a 680M