Bobcat (microarchitecture)
{{Short description|Computer microarchitecture created by AMD}}
{{Infobox CPU
| name = Bobcat - Family 14h
| image =
| image_size = 138px
| caption =
| produced-start = early 2011
| produced-end = present
| size-from = 40 nm
| manuf1 = AMD
| core1 = AMD APU
| successor = Jaguar - Family 16h
| sock1 = Socket FT1 (BGA-413)
}}
The AMD Bobcat Family 14h is a microarchitecture created by AMD for its AMD APUs, aimed at a low-power/low-cost market.{{cite web|title=List of AMD CPU microarchitectures - LeonStudio|url=http://leonstudio.org/p/165|website=LeonStudio - CodeFun|access-date=12 September 2015|date=3 August 2014|archive-date=26 September 2020|archive-url=https://web.archive.org/web/20200926092938/http://leonstudio.org/p/165|url-status=dead}}
It was revealed during a speech from AMD executive vice-president Henri Richard in Computex 2007 and was put into production Q1 2011.{{cite web | url=http://hothardware.com/News/AMD-FlipFlops-Llano-Later-Bobcat-Bounding-Forward/ | title=AMD Flip-Flops: Llano Later, Bobcat Bounding Forward | date=July 16, 2010 | first=Joel | last=Hruska | publisher=HotHardware | access-date=July 17, 2010 | archive-url=https://web.archive.org/web/20100721024445/http://hothardware.com/News/AMD%2DFlipFlops%2DLlano%2DLater%2DBobcat%2DBounding%2DForward/ | archive-date=July 21, 2010 | url-status=dead }} 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 W range and actively promoted the development of the simpler core with a target range of 1–10 W. 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.{{citation |url=http://www.dailytech.com/Article.aspx?newsid=7623 |title=Gunning for Mobilty: Intel and AMD Bet on a Mobile Internet |publisher=Dailytech.com |date=2007-06-13 |access-date=2012-01-27 |archive-url=https://web.archive.org/web/20140202121630/http://www.dailytech.com/Article.aspx?newsid=7623 |archive-date=2014-02-02 |url-status=dead }}{{cite web | url=http://ir.amd.com/phoenix.zhtml?c=74093&p=irol-analystday | title=Analyst Day 2009 Presentations | date=November 11, 2009 | publisher=AMD | access-date=2009-11-14 | archive-url=https://web.archive.org/web/20170417070752/http://ir.amd.com/phoenix.zhtml?c=74093&p=irol-analystday | archive-date=April 17, 2017 | url-status=dead }} 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: [http://pc.watch.impress.co.jp/docs/2007/0529/kaigai363_05l.gif Slide 11] and [http://pc.watch.impress.co.jp/docs/2007/0529/kaigai363_04l.gif 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:{{citation|url=https://www.amd.com/us/Documents/49282_G-Series_platform_brief.pdf |title=AMD Embedded G-Series Platform |publisher=AMD |format=PDF |access-date=2012-01-27 |url-status=dead |archive-url=https://web.archive.org/web/20130911104934/http://www.amd.com/us/Documents/49282_G-Series_platform_brief.pdf |archive-date=2013-09-11 }}
- 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, ABM
In February 2013, AMD detailed plans for a successor to Bobcat codenamed Jaguar.
Features
Processors
{{See also|List of AMD processors with 3D graphics|List of AMD mobile processors}}
In January 2011 AMD introduced several processors that have implemented the Bobcat core. This core is in the following AMD Accelerated Processors:{{citation|url=https://www.amd.com/us/products/notebook/apu/mainstream/Pages/mainstream.aspx#/3 |title=AMD Accelerated Processors for Mainstream Notebooks |publisher=AMD |date=2012-01-17 |access-date=2012-01-27}}{{citation|url=https://www.amd.com/us/products/desktop/apu/all-in-one/Pages/all-in-one.aspx#3 |title=All-In-One Desktops With AMD Accelerated Processors |publisher=AMD |access-date=2012-07-02}}File:AMD CMC60.jpg
| class="wikitable sortable" style="text-align: center" | ||||||||||
| valign="top"
! Series ^ !! Model !! CPU clock | ||||||||||
| rowspan="4" | C-Series | C-30 | rowspan="2" | 1000 | 1 | rowspan="4" | {{0}}9 | 512 | rowspan="23" | 80 | 277 | rowspan="12" | 11 | rowspan="12" | UVD 3 | rowspan="7" | 1066 |
| C-50 | rowspan="3" | 2 | rowspan="3" | 2*512 | 276 | |||||||
| C-60 | rowspan="2" | 1000/1333 (turbo) | rowspan="2" | 276/400 (turbo) | ||||||||
| C-70 | ||||||||||
| rowspan="8" | E-Series | E-240 | 1500 | 1 | rowspan="8" | 18 | 512 | rowspan="2" | 500 | ||||
| E-300 | 1300 | rowspan="7" | 2 | rowspan="7" | 2*512 | |||||||
| E-350 | 1600 | 492 | ||||||||
| E-450 | 1650 | 508/600 (turbo) | 1333{{citation|url=http://www.anandtech.com/show/4407/the-brazos-update-amds-e450 |title=The Brazos Update: AMD's E-450 |publisher=Anandtech.com |date=2011-06-01 |access-date=2012-01-27}} | |||||||
| E1-1200 | 1400 | 500 | rowspan="2" | 1066 | |||||||
| E1-1500[https://www.amd.com/us/products/notebook/pages/consumer-notebooks.aspx#7 Notebooks] AMD.com | 1480 | 529 | ||||||||
| E2-1800 | 1700 | 523/680 | rowspan="2" | 1333 | |||||||
| E2-2000 | 1750 | 538/700 | ||||||||
| rowspan="9" | G-Series | T-24L | {{0}}800 | rowspan="2" | 1 | {{0}}5 | rowspan="2" | 512 | colspan="3" rowspan="2" | ? | 1066 | |||
| T-30L | 1400 | 18 | 1333 | |||||||
| T-40N | 1000 | 2 | rowspan="2" | {{0}}9 | 2*512 | rowspan="2" | 276 | rowspan="3" | 11 | rowspan="3" | UVD 3 | rowspan="9" | 1066 | ||
| T-44R | 1200 | 1 | 512 | |||||||
| T-48E | rowspan="3" | 1400 | rowspan="3" | 2 | rowspan="5" | 18 | rowspan="3" | 2*512 | 280 | |||||
| T-48L | colspan="3" | ? | |||||||||
| T-48N | rowspan="3" | 492 | rowspan="5" | 11 | rowspan="5" | UVD 3 | |||||||
| T-52R | 1500 | 1 | 512 | |||||||
| T-56N | 1600 | rowspan="3" | 2 | rowspan="3" | 2*512 | |||||||
| rowspan="2" | Z-Series | Z-01 | rowspan="2" | 1000 | 5.9 | 276 | ||||||
| Z-60[https://www.amd.com/us/products/notebook/tablets/Pages/tablets.aspx#3 Tablets] AMD.com | 4.5 | 275 |
^ E-Series & C-Series are standard parts, G-Series are embedded parts
See also
- Bulldozer, a new core for the 10 to 125 Watt TDP range.
- List of AMD processors with 3D graphics
References
{{Reflist|30em}}
External links
- [https://web.archive.org/web/20140202121630/http://www.dailytech.com/Article.aspx?newsid=7623 Dailytech report]
- [https://web.archive.org/web/20100314203526/http://www.reghardware.co.uk/2007/06/11/amd_readies_umpc_cpu/ RegHardware report]
- [http://isscc.org/media/2011/ids/2011_IDS_15.4.mp4 Bobcat presentation (video)] {{Dead link|date=June 2019 |bot=InternetArchiveBot |fix-attempted=yes }} at ISSCC 2011
- [https://www.amd.com/us/pages/amdhomepage.aspx AMD Home Page]
{{AMD processors}}
{{DEFAULTSORT:Bobcat}}
Category:AMD x86 microprocessors