Why is this so cheap?

Solution
Follow the links and you will spot the issue.

If you go from there to see the four seller you get here
http://shop.amd.com/US/_layouts/shop/ProductDetails.aspx?productID=HD583XZNFV&region=us-en&tabID=2
and you see CDW is the abnormally cheap price, following that link
http://www.cdw.com/shop/products/ASUS-EN8400GS-DI-512MD2LP-graphics-adapter-GF-8400-GS-512-MB/2328790.aspx
You realize that the data harvesting software AMD is using sucks and got confused by CDW into believing that an 8400GS was a 5830.
Follow the links and you will spot the issue.

If you go from there to see the four seller you get here
http://shop.amd.com/US/_layouts/shop/ProductDetails.aspx?productID=HD583XZNFV&region=us-en&tabID=2
and you see CDW is the abnormally cheap price, following that link
http://www.cdw.com/shop/products/ASUS-EN8400GS-DI-512MD2LP-graphics-adapter-GF-8400-GS-512-MB/2328790.aspx
You realize that the data harvesting software AMD is using sucks and got confused by CDW into believing that an 8400GS was a 5830.
 
Solution


Yeppers - and then the second low price at Amazon is for a used card so the prices at Newegg are still much better (about the same $130 After MIR for new instead of used) the last 2 prices are outrage compared to Newegg's prices.