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In this case, it is PowerPC and Power ISA, processor architectures initially developed in the early 1990s by the AIM alliance, i.e. Apple, IBM, and Motorola. Even though these consoles share much in regard to instruction set architecture , game consoles are still highly specialized computers so it is not common for games to be readily portable ...
Microsoft XCPU, codenamed Xenon, is a CPU used in the Xbox 360 game console, to be used with ATI's Xenos graphics chip.. The processor was developed by Microsoft and IBM under the IBM chip program codenamed "Waternoose", which was named after the Monsters, Inc. character Henry J. Waternoose III. [1]
The first implementation of the architecture was the PowerPC 601, released in 1992, based on the RSC, implementing a hybrid of the POWER1 and PowerPC instructions. This allowed the chip to be used by IBM in their existing POWER1-based platforms, although it also meant some slight pain when switching to the 2nd generation "pure" PowerPC designs.
7440/7450 micro-architecture family up to 1.5 GHz and 256 kB on-chip L2 cache and improved Altivec; 7447/7457 micro-architecture family up to 1.83 GHz with 512 kB on-chip L2 cache; 7448 micro-architecture family (2.0 GHz) in 90 nm with 1MB L2 cache and slightly improved AltiVec (out of order instructions).
The Power Processing Element (PPE) comprises a Power Processing Unit (PPU) and a 512 KB L2 cache.In most instances the PPU is used in a PPE. The PPU is a 64-bit dual-threaded in-order PowerPC 2.02 microprocessor core designed by IBM for use primarily in the game consoles PlayStation 3 and Xbox 360, but has also found applications in high performance computing in supercomputers such as the ...
The PowerPC 970 (G5) was the first IBM-manufactured CPU to implement VMX/AltiVec, for which IBM reused the old 7400 design they still had from the design they did with Motorola in Somerset. The Xenon CPU in the Xbox 360 also features VMX, with added proprietary extensions made especially for Microsoft.