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Bobcat (microarchitecture) : ウィキペディア英語版
Bobcat (microarchitecture)

The AMD Bobcat Family 14h is a microarchitecture created by AMD aimed at low-power/low-cost market.
It was revealed during a speech from AMD executive vice-president Henri Richard in Computex 2007 and was put into production Q1 2011. One of the major supporters was executive vice-president Mario A. Rivas who felt it was difficult to compete in the x86 market with a single core optimized for the 10-100 Watts range and actively promoted the development of the simpler core with a target range of 1-10 Watts. In addition, it was believed that the core could migrate into the hand-held space if the power consumption can be reduced to less than 1 W.
''Bobcat'' cores are used together with GPU cores in accelerated processing units (APUs) under the "''Fusion''" brand. A simplified architecture diagram was released at AMD's Analyst Day in November 2009. This is similar in concept with earlier AMD research in 2003,〔AMD 2003 Microprocessor Forum Slides: (Slide 11 ) and (Slide 22 )〕 detailing the specifications and advantages of extending x86 "everywhere".
== Design ==
The ''Bobcat'' x86 CPU core design has since been completed and implemented in AMD APU processor products with a TDP of 18 W or less. The core is targeted at low-power markets like netbooks/nettops, ultra-portable laptops, consumer electronics and the embedded market. Since its launch, Bobcat-based CPUs have also been used by OEMs on larger laptops. Architecture specifics:
* 64-bit core
* Out-of-order execution
* Advanced branch predictor
* Dual x86 instruction decoder
* 64-bit integer unit with two ALUs
* Floating-point unit with two 64-bit pipes
* Single channel 64-bit memory controller
* 32 KiB instruction + 32 KiB data L1 cache
* 512 KiB - 1 MiB L2 cache
* MMX, SSE, SSE2, SSE3, SSSE3, SSE4A
* GPU: TeraScale 2
In February 2013, AMD detailed plans for a successor to ''Bobcat'' codenamed ''Jaguar''.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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