IDG are also known as IDC. You may have heard of them.
They are the people to go to for actual figures, estimated figures and projected figures. So much trust can we put in these numbers that even Sony and Microsoft use these reports from IDG in their audited financials, even Take Two are quoting them. IDG use numbers from NPD, Gfk and other well known trackers to come to their totals and charge 10's of thousands of dollars for just one report.
So anyone saying these numbers are not a true representation of sell through are wrong. IDG are telling us the cumulative install base of PS4 and X1 as exceeding 29 million units.
AMD also told us that sell through to end users was nearly 30 million. AMD could very well be using IDG figures.
Therefore we can estimate that sell through will be between 29-30m with over ~18.5m attached to PS4.







