They won't come true to named variety -- varieties are propagated by grafting -- so it'll be a cr*pshoot how good a tree you'll get out of them.
Not all peaches even set viable seed on a reliable basis, I believe -- I know that I've accidentally split pits on some store- and farmers-market-boughten peaches, and not infrequently found a wizened undeveloped thing inside rather than a proper seed. I have no idea how common/uncommon this is.
Are you planting them in pots or just in the ground? Might try some both ways, some things do better in the ground. Just leave them til next summer, see if anything happens. As I say, though, any resulting tree would be a gamble, fruit quality wise.
Good luck, have fun,
Pat