Quote Originally Posted by Xello View Post

About the 4000 cards, does it make sense for both the 4850 and 4870 to have the 800 (/5) sp count? You'd think they might cut down the number on the 4850 or something right?
They can disable or set the frequencies. That is how they split up the main chip into many fragments which is usually called market segments, that means the same chip can make many derived products from it like 4850, 4870 and 4870x2.

Metroid.