PlayStation 4 had originally been designed to feature just 4GB RAM before a 'business decision' was made to double the memory.
Speaking to GameSpot, Yoshida said that the decision to upgrade to 8GB RAM was made after speaking with developers.
"Because we chose expensive memory…we really liked the performance, but it's pricy [sic], right? So going to 8GB was a bit of a business decision, but we were able to make that decision because of a lot of the feedback from developers," explained Yoshida.
The fact that the PlayStation 4 includes 8GB RAM of GDDR5 memory came as a big surprise to everyone when announced in February.