At E3, Nintendo recently revealed that the GameCube\'s hardware specs will differ from those announced at last year\'s Spaceworld. The revision bumps up the IBM "Gekko" CPU\'s speed from 405MHz to 482MHz, while decreasing that of the ATI "Flipper" graphics chip from 200MHz to 162MHz. Greg Buchner, ATI\'s vice president of engineering, told GameSpot that the primary reason for the change was to better balance the system and respond to game developers\' wish for a faster processor. The decrease in Flipper\'s speed isn\'t related to problems with getting it to run at that speed but is instead due to the fact that the CPU needed to run at an integer multiple of Flipper. The balance Nintendo decided on uses a multiple of three instead of the planned multiple of two. While many PC systems can use half-step multiples, Buchner said that this approach--which might have more flexibly allowed for a multiple of 2.5 between Gekko and Flipper--wasn\'t technically possible in this case....
""The key to the GameCube\'s performance is the way it uses embedded memory for low latency and high bandwidth. The 3MB of memory on Flipper accounts for about half of the chip\'s 51 million transistors, and the on-chip design allows for more than 20GB/sec of bandwidth, although bandwidth drops to 3.2GB/sec when textures are stored in main memory. The Flipper rolls up nearly all non-CPU tasks onto a single chip, including the memory controller for the 24MB of main memory and 16MB of secondary memory, which some developers are using much like a traditional cartridge\'s ROM to cache priority data stored on the comparably slow optical game discs.""
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Topic: GameCube graphics details:Nintendo has revised the GameCube\'s specs... (Read 822 times)