Different between two msi. N640GT md2gd3?

michaeln93

Honorable
Dec 22, 2012
5
0
10,510
What are the differences between the two gpu? I need answers from an expert on this. I bought this gpu on ebay, the one with two dissipatator/fan gpu which is this:

http://us.msi.com/product/vga/N640GT-MD2GD3.html

But they sent me the same product name and manufacture number gpu but then it has only one one armored fan.

I did a quick research and the one I bought has 1700speed while the one they sent is only around 1300, obviously the one I got is sucker but I want to know is it really, from a professional that is.