The months-long jockeying for position between AMD and Nvidia has led to this moment: Who has the faster flagship video card? Nvidia held the crown for a long while thanks to its powerful and polished GTX 580, still the best single-processor card on the market. But when AMD released its dual-GPU Radeon HD 6990 earlier this month, and it delivered blistering benchmark results along with a sky-high $699 list price and an ultra-noisy fan, it looked like AMD might own the top tier this generation. Now that Nvidia has released its own dual-GPU card, the Nvidia GeForce GTX 590 (also $699), we definitively know the answer: AMD just wins the performance crown. Nvidia's card has some solid reasons to recommend it—much better noise characteristics, it will fit in a (slightly) wider variety of cases—but for this much money you probably want the fastest card there is. And the GTX 590, in spite of its virtues, is not quite it.
The GTX 590 is, however, packed with power. You'd expect that from any two-GPU card in general—the last one Nvidia released was the GTX 295, in early 2009—and especially from one that essentially fuses two powerful GF110 GPUs (the kind used in the GTX 580). It sports a total of 1,024 CUDA processing cores, 128 texture units, 96 ROP units, and 32 tessellation engines for making the most of one of the most sought-after DirectX 11 (DX11) features. The card's graphics clock runs at 607 MHz, its processor clock at 1,215 MHz, and its memory clock at 3,414 MHz. It's loaded with 3,072MB of GDDR5 memory for the frame buffer, which operates over a 384-bit memory interface.
Hot on the heels of AMD's recently released Radeon HD 6990, Nvidia introduced its own new flagship video card today, the GeForce GTX 590.
Nvidia's first dual-GPU video card since the GTX 295 in early 2009, the GTX 590 unites a pair of GF110 GPUs (the kind used in the GTX 580, the fastest single-GPU card on the market) on a single card. This means you get of 1,024 CUDA processing cores, 128 texture units, 96 ROP units, and 32 tessellation engines. The card's graphics clock runs at 607 MHz, its processor clock at 1,215 MHz, and its memory clock at 3,414 MHz. It's loaded with 3,072MB of GDDR5 memory for the frame buffer, which operates over a 384-bit memory interface.
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