Vibration is vibration.

Since you didn't specify, I'm working on the assumption of a vagina being the recipient of said vibrator.

Generally speaking, the vagina is most sensitive in the first two inches inside. As such, the vibrations being most intense at the base should be of benefit in terms of purely vaginal sensation.

Now, the g-spot is also close to the entry of the vagina. Typically, people with vaginas seeking an orgasm internally find stimulation there to be more reliable; there's a significant percentage of people that can't orgasm from vaginal stimulation alone.

Even a fairly mild motor should be capable os stimulating the g-spot from the base. Notice that should. Individual vaginas and g-spots vary enough there's never a guarantee.

So, overall, as long as the entire toy is reasonably stiff, the vibrations should be more than capable of helping you reach orgasm.

Some side info. The g-spot can be reached from the vagina, but isn't technically part of it. The g-spot is a section of the internal arms of the clitoris. To reach that g-spot, one needs only a finger or two. With the palm facing the vulvae, insert one or two fingers fully, then curl the finger towards the palm like you're making a "come here" gesture. Or, I guess cum here.

The g-spot feels slightly firmer than the walls of the vagina, and has a spongy spring to it. It is palpable by the person feeling for it. Obviously, the palm person whose g-spot is being palpated would likely be able to tell when it is being pressed on.

It would be a very good idea to trim one's fingernails before attempting to palpate a g-spot, lest tray be the last time you have access to that vagina, as torn vaginal walls from fingernails are very unpleasant as they heal. They may feel good in the moment to some, but the itching and burning afterwards annoys anyone I've ever talked to that has experienced it.

Back to OP

With all of that in mind, chances are good you'll both reach the g-spot, and stimulate it well with the toy you're asking about