Orgasm is mostly neurological. So, essentially, differences in genitals don't make a difference as far as actual orgasm goes. However, per genital stimulation, there is NO other organ on the male or female body with as many nerve endings as the clitoris, so suffice it to say, that can be a big enhancement.

Too, with men, sometimes certain things make a difference. For instance, it's common for men to be reared with the idea that sex for them is penis-centric, not whole-body, and focusing all stimulus or attention on one small orgasn or area only -- for anyone -- can very much limit the experience of orgasm. As well, many men forget about the fact that the postate gland is incredibly sensitive, sometimes even more so than the penis, and don't incorporate prostate play into sex: not doing that can be an equivalent to women not bringing clitoral or g-spot stimulus nto their sex play.

But again, all of this varies a lot from person to person, especially since orgasm, arousal and experiences of sexuality are so multidimensional: physical, emotional, intellectual, and all of those aspects are aspects of orgasm.

So, if you're looking to enhance your experience of orgasm, you should consider things like how much of your WHOLE body and mind you're bringing to the table, how you feel about sex overall, if you're in good health and fitness, if your idea of your genitals is more limited than it should be, if you're approaching sex (solo or otherwise) with a mindset conducive to a fuller experience.