The perpetual war for supremacy between AMD and Nvidia constantly leaves enthusiasts dodging shrapnel: When you want the best video card you can afford, why buy one now instead of waiting for the better one the competing chipset designer will undoubtedly release in a few months? This leaves reviewers in a tough spot, too, as we're constantly proclaiming that nearly every new card is the fastest ever. But because you can only live in the world you live in, we're obliged to go there. So, here goes once again: The just-released AMD Radeon HD 7970 ($549 list) is the latest fastest and most feature-rich single-GPU card ever, surpassing our previous Editors' Choice winner, the Nvidia GeForce GTX 580.
Though we have little doubt that Nvidia will yank back that title with its next generation of cards, the 7970 is an impressive achievement for the moment. (It's rumored to become widely available by early January of 2012.) The inaugural member of the Southern Islands family, it utilizes a fresh architecture AMD refers to as "Graphics Core Next." Based on a new 28nm process technology and utilizing more than 4.3 billion transistors, Graphics Core Next uses a revised instruction set architecture, gives each compute unit the ability to simultaneously execute instructions from multiple kernels, and delivers an increased number of instructions per clock cycle per square millimeter of GPU space. The result, so AMD claims, is "designed for high utilization, high throughput, and multitasking."
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