visually, maybe. in taste, not at all. Comte and Beaufort maybe, Comte and Gruyere? no way
I'm from a less cheese-y part of Europe, but isn't Comté often called Gruyère de Comté for a reason? Of course they'll taste very different when aged for very different amount of times, but I've found them to be decently similar when aged for similar amounts of time.
This is heresy!