there you will find information on both genomes. if 25k is an estimate then why do they teach us in school that the entire human genome has been sequenced? if it was sequenced it wouldnt be an estimate.
Although the chimp genome has not been fully completed, you can still determine how similar they are using DNA hybridization, but this is not accurate everytime (some reveal 97% some reveal 98-99%.
Im not trying to offend anyone with this post, im just sharing what I have learned here in school. If I am wrong here, please indicate.