På dagen for den officielle lancering af Radeon HD 7990 grafikkortet med to Tahiti chip, er der kommet en række tests af AMDs reference kort. Her er det TechPowerUp der tester Radeon HD 7990.
Part of the reason for things playing out as they did was NVIDIA's single-GPU flagship at the time, the GeForce GTX 680. Not only did it outperform AMD's Radeon HD 7970 GHz Edition, but it also made an attempt at a dual-GPU card by AMD futile. AMD's Radeon HD 7970 GHz Edition caught up with the GTX 680 in June, albeit at a significant power-draw cost that made a reference dual-GPU card all the more unfit for reference design treatment, since the GTX 690 showed near-perfect performance upscaling over the GTX 680 and exceptionally good power-draw. AMD's HD 7990, which was codenamed "New Zealand" on the company's roadmaps, was in jeopardy. The company did allow its board partners to come up with their own board designs that used a pair of HD 7970 GPUs, but those cards usually required three power connectors and triple-slot cooling solutions. AMD's 2012 clearly didn't end as well as the company had hoped for, at least in the extreme segment. By the turn of the year, AMD dropped hints that it hadn't given up on the reference HD 7990, adding that efforts to make this summer's high-end GPU segment interesting were well on their way.
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