TheTechLounge posted a review on the Sapphire Radeon HD 4550 512MB

Sometimes a video card needs to be just that. A card for video. Many high-end workstation motherboards don't have integrated video, but what good is a computer without a display? The Intel i7 is just the perfect example. A lot of people have the need for quad cores of number-crunching power, but they're not gamers and, appropriately, have no desire to own a beautiful set of GTX 50 millions. (But you'll get there, we'll see to that.

Sapphire Radeon HD 4550 512MB Review