I don't understand why they're being so vague with this product. There are a lot of great improvements and this would be a good upgrade even if the performance was roughly the same as the 855, so, why are they trying to be sneaky with specifics about performance? Saying stuff like "25% overall performance improvement from previous generations" doesn't mean anything when we don't know what specific product they're referring to. To my recollection, there's a ~25% overall performance improvement going from the 835 to the 855 too. Those are both "previous generations".