The rumors said that the Xbox Next and PlayStation 4 “Orbis” will uses an X86 based CPU with 64-bit cores technology from AMD codenamed "Jaguar", make it a new multi-core solution for high demanding future video games, the clock speed of the SoC is 1.6GHz sharing 2MB of L2 high performance cache with low power consumption and less heat output.
Some analyses from Xbit about the news:
The idea to use AMD’s low-power/low-cost cores instead of high-performance x86 cores has both pros and cons. On the one hand, AMD’s Jaguar looks very promising on paper and has a number of advantages that may be especially valuable for game consoles, including 128-bit floating point unit (FPU) with enhancements and double-pumping to support 256-bit AVX instructions as well as an innovative integer unit with new hardware divider, larger schedulers and more out-of-order resources. On the other hand, AMD’s Jaguar is substantially behind the company’s high-end x86 cores when it comes to general-purpose performance and therefore some of the operations may take a long time to complete, unless there are not special-purpose accelerators integrated or the consoles will heavily rely on GPGPU [general-purpose computing using GPUs] technologies.Microsoft doesn't respond to this news until now, again at the first half this year, the two companies will set the first official appearance of the two products, and the expected price is between $350 - $400 on the next holiday.
Bellow two snapshots graph of the architecture used for the two systems:
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