HIS

Perhaps fortunately, AMD's reference Radeon R9 280X is a bit of a phantom outside our own labs. If you're shopping for one of these Tahiti-based boards, you're looking at third-party solutions. We round up seven models and show what makes them different.

EVGA recently lent our German lab one of the GeForce GTX 690s we've had in the U.S. for months. The purpose? To pit against HIS' upcoming 7970 X2 and PowerColor's Devil13 HD7990, both dual-Tahiti boards vying to become the world's fastest graphics card.

With Nvidia's GeForce GTX 670 readily available for $400, AMD's Radeon HD 7950 shifts to the upper middle class of graphics card performance. We test six third-party interpretations in anticipation of pricing more in line with its competitive position.

GeForce GTX 680 cards are nowhere to be found, and the Radeon HD 7970 recently dropped to a much more attractive price. We thought it was time to round up a handful of Tahiti-based cards to see how board partners are improving upon AMD's original recipe.

What better way to wrap up a scorching summer than with a last word on cooling? We explain the most important rules for creating ideal airflow, address the potential effectiveness of side fans, and discuss the finer points of graphics card cooling.

AMD’s 1 GB Radeon HD 6950s are certainly cheaper than their 2 GB predecessors. But are they really a better value? In theory, the Cayman GPU runs out of steam before 2 GB is needed. So, we're comparing five custom 1 GB cards to the 2 GB part to find out.

We’ve seen impressive performance from Nvidia's GeForce GTX 460 when it's matched up with a second card in SLI mode. But how does the entire high-end GeForce GTX 400 line compare to Radeon HD 5000-series cards? We test them all in several popular games.

AMD quietly introduced its new Radeon HD 5550 and prepped the Radeon HD 5570 GDDR5 to follow. We examine the performance of these two stealth-launched models to see if they have what it takes to replace a couple of power contenders in the sub-$100 market.

Why buy a standard model when you can get the top-of-the-line? Treat yourself to the good stuff! We take three premium graphics cards for a spin to see just what kind of optional extras you can get when purchasing a factory-tweaked non-reference board.

What does it mean to build a truly-balanced PC? How great would it be to piece together a machine bottlenecked by neither CPU or GPU? We set forth to measure the perfect balance in seven different games and four resolutions in this third of many parts.