The graphics card is like the front man of your PC band as it often attracts the most attention. It is the first thing you list as the difference between a regular PC and a gaming PC. Diamond Multimedia, the company that brought our own front man, Stephen Fung to custom PCs, was nice enough to send us their Diamond Radeon HD 7790 1GB.(7790PE51G). We are going to put the Diamond HD 7790 on stage, put a spotlight on it, and see if the pressure can bring out a “Monster3D” performance. Features and Specifications Diamond Multimedia Radeon HD 7790 (7790PE51G) Graphics Card Review The Diamond Radeon HD 7790 1 GB (7790PE51G) is a custom all black PCB card with a custom cooler.