Sorry for the late response, Yes it is a stock cooler from his old Athlon, I believe it was a Athlon 64 X2 4600+, I also think iv heard something about using older stock coolers on newer processors before, but the point i dont really get is all coolers do the same thing, What difference is there between this cooler and a quad core stock cooler? Possibly a different metal mixture on the heatsink?
Different processors have different amounts of needed heat dissipation.
Stock coolers are designed to dissipate the amount of heat output by the processor they are designed for.
Modern Phenom IIx6 coolers need to dissipate a lot more heat than previous processors. This is why the stock heatsinks for them have a lot of copper and even have heatpipes. At the same time, the Athlon IIx2 heatsinks are very small, completely aluminum heatsinks.