I remember actual physical details from my early childhood, things like looking at the wall, the clothes hamper, what our dogs were like, the clothes that I had, etc. I have a vivid sensory memory.
I remember things that very occasionally other people either don't remember, or are very unhappy that I do recall, and so try to deny it. And to me, what I'm remembering is so stupidly matter of fact that I can't believe they'd even deny it, unless they have a head injury or a drug/drink problem of epic proportions. You know, things that have happened in the last three to five years, really common sense stuff, nothing obscure.
My ESFJ friend once marvelled that I could repeat back things that just happened or were just said with stunning accuracy, she's like "it's almost like rain man."
My mother refers to me as "the walking dictionary/encyclopedia."
I've even noticed when I'm telling people something, I'll sometimes throw in other related facts.
Is this related to being Sensing dominant? It's not Si. Si is not memory, and I did think I must have Si for a very long time because of the sharpness of my sensory memory, but this would be improbable in an ENFP who rejects Si for the first part of life.