What's the difference between different video card manufacturers?

[TheRedStorm]

Like Sapphire, HIS, XFX, Gigabyte, Asus, Powercolor, etc...

What's the difference between the same gpu but different manufacturers? Like what would be the difference between a Radeon HD 6850 by Sapphire and one by HIS or XFX? Aren't they all still pretty much the same - an AMD Radeon 6850? Also, I don't understand why there are different companies that make things that are all products from the same company (AMD).

 

[manu 11]

simple answer: reliability , quality. yes, they have the same chip but the coolers are different in different company's, not talking about reference one. also, costumer service is an important part.between, from your specified list, i prefer sapphire, his, gigabyte, asus. i dont prefer xfx because every time i baugt a card from the it runs like hot hot hot. asus, gigabyte have very nice cooling solutions

 

[TheRedStorm]

Best answer selected by TheRedStorm.