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 Jun 16, 2005 - 10:00 AM - by Michael
* NVidia gets Xbox360 $$$ anyway

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Xbox/Xbox Games
In order to make the Xbox360 backwards compatible, it turns out that Microsoft had to license some Nvidia technology.

Last week, ATI European Developer Relations Manager Richard Huddy provided the first hint in an interview with Bit-Tech. "Emulating the CPU [of the original Xbox] isn't really a difficult task. They have three 3GHz cores, so emulating one 733MHz chip is pretty easy," he said. "The real bottlenecks in the emulation are GPU calls - calls made specifically by games to the Nvidia hardware in a certain way."

In order to overcome the problem of games calling upon chip specific features within the Nvidia hardware, Microsoft needed to emulate the Xbox's GPU. Without an official agreement with Nvidia, however, Microsoft would have to reverse engineer the technology, which would have been a "legal nightmare" for the company, said our source.
Well, we're getting closer and closer on the backwards compatibility thing.
 

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