I have not seen that chart unless... The only chart that compared GTX580 and 680 sales didn't have any numbers on it. Looking at that one, I think it's the same and I suspect you are counting each line as 1000 units, because it fits with what you're saying. Each line could represent dozens or hundreds of thousands of units shipped, we do not know. I'm pretty sure that they sell quite a few more cards than a few thousands globally. Global graphics sales each quarter are counted in dozens of millions. Look at the chart posted by humansmoke 578k $300+ cards were sold by Nvidia in Q2 2011. And 2 things on Steam survey: 1- Those percentages are for DX11 cards, which themselves represent a 46% of total cards. Cut your numbers in half. 2- Sales rates have grown each weak/month (as shown by the comparison chart too). The first month (April) they sold far less than the last month (June). EDIT: And HumonSmoke's chart alone pretty much demostrates why they are not releasing $200-$300 cards, and released only high-end and low end instead.