Hackers Discover Wii U's Processor Design and Clock Speed 173
MojoKid writes "Early, off-the-record comments from game developers indicated that the Nintendo's Wii U console horsepower was on par with, or a bit behind the Xbox 360 and PS3, which raised questions about just how 'next-generation' the Wii U would be. Now, Wii and PS3 hacker Hector Martin (aka Marcan) has answered some of these questions and raised a few others. According to his findings, the Wii U's CPU is a triple-core design clocked at 1.24GHz. Marcan identifies the base design as a PowerPC 750, which makes sense. Nintendo used PowerPC 750-derived processors in both the GameCube and the Wii. Retaining that architecture for the Wii U would simplify backwards compatibility and game development. Now factor in the GPU, which is reportedly clocked at 550MHz. Some have favored the Radeon HD 4000 series as a basis for the part; I still think a low-end Radeon 5000, like Redwood Pro, makes more sense. That GPU was built on 40nm, measured 104mm sq, clocked in at 649MHz, and had a 39W TDP. The die size discrepancy between the Wii U and Redwood Pro would account for the 32MB of EDRAM cache we know the Wii U offers. Nintendo may have propped up a relatively weak CPU with considerably more GPU horsepower."
