Sapphire Radeon HD 6790 Review

Remember the Radeon HD 5830? That videocard filled a certain price point, but it was actually the same GPU used in the high-end HD 5870, with a large chunk of the die disabled. Enter the Radeon HD 6790. At first blush, it’s similar in concept to the HD 5830. AMD took its Barts GPU (used in the Radeon HD 6870 and 6850) and disabled a big chunk of it. Voilà: the Radeon HD 6790.


Zotac GeForce GTX 550 Ti AMP Edition Review

The Zotac AMP edition of Nvidia’s new budget GPU, the GTX 550 Ti, pushes the clock speeds to a full 1GHz—more than 10 percent higher than the default 900MHz. It amounts to a $150 card with 1GB of GDDR5 memory that performs moderately well in modern games, if you’re willing to dial down features like antialiasing. However, Zotac doesn’t seem to be aiming this card at gamers, but rather at digital media junkies and home theater PC enthusiasts.