I honestly don't think so. Listening to music at that volume indicates that your laptop has more than enough to power the headphones. Sure, the circuitry is inferior to a standalone dac/amp, but I don't believe the difference would be that noticeable and your ears will adapt anyway.

If possible, buy one from a place that has good customer service and return it if you don't think it's worth the money. I've solved many curiosities of mine this way.