The problem is the compatibility. Is Sapphire the same with AMD brand of 6450? What's the difference between AMD and Sapphire? Will it be compatible to my APU?
Second problem is, there are many versions of Sapphire Radeon HD 6450. On this website, http://www.sapphiretech.com/presentation/product/produc..., on the upper right hand, there is a drop box where in you can see HD 6450's different versions. Are those versions compatible? Or is there just one compatible to my APU?
1. Most videocards are made by manufacerers like asus, saffier and XFX. You'll have a hard job to find a refrence 6450. AMD only desighns the GPU, not the cooler(or any other part of the card) So yes it should be possible.
2. As long as it is a 6450 it should work no matter what cooler, memory or OC (although I hope you wont be overclocking it with a passive cooler)
Always willing to help not alot of people know about dual graphics but I assure you its better then a single card.
My HTPC : A8-3800 with a 6670 this pc preforms better then a 6770.