Whats the difference between 2 same gpus from 2 companies?

[Thegame741]

Why is there an EVGA GTX 780 and an asus GTX 780 and a gigabyte gtx 780 for example? What is the difference? They each seem to have different prices so they can't truly be identical.

 

[sla70r]

Cooling devices, clock speeds, and warranties .

 

[byza]

Also quality of components and construction. Some companies also used binning separate GPU's that will overclock better which is why you may see 2 or 3 different 780 ti GPU's from Asus or EVGA.

 

[Cons29]

boards are also different at times, nvidia releases a reference gpu (board, cooler, specs, etc) then 3rd parties use that and/or make their own board layout, use other cooler, oc the core and mems.
but under the hood, the main engine is still from nvidia