Open main menu

The AMD Bobcat Family 14h is a microarchitecture created by AMD for its AMD APUs, aimed at a low-power/low-cost market.[1]

Bobcat - Family 14h
ProducedFrom early 2011 to present
Common manufacturer(s)
Min. feature size40 nm
Instruction setAMD64 (x86-64)
Core name(s)
Socket(s)
SuccessorJaguar - Family 16h

It was revealed during a speech from AMD executive vice-president Henri Richard in Computex 2007 and was put into production Q1 2011.[2] 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.[3][4] 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,[5] detailing the specifications and advantages of extending x86 "everywhere".

Contents

DesignEdit

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:[6]

In February 2013, AMD detailed plans for a successor to Bobcat codenamed Jaguar.

Feature overviewEdit

Brand Llano Trinity Richland Kaveri Carrizo Bristol Ridge Raven Ridge Picasso Desna, Ontario, Zacate Kabini, Temash Beema, Mullins Carrizo-L Stoney Ridge
Platform Desktop, mobile Ultra-mobile
Released Aug 2011 Oct 2012 Jun 2013 Jan 2014 Jun 2015 Jun 2016 Oct 2017 Jan 2019 Jan 2011 May 2013 Q2 2014 May 2015 June 2016
CPU microarchitecture K10 Piledriver Steamroller Excavator Zen Zen+ Bobcat Jaguar Puma Puma+[7] Excavator
GPU microarchitecture TeraScale 2 (VLIW5) TeraScale 3 (VLIW4) GCN 2nd gen GCN 3rd gen GCN 5th gen[8] TeraScale 2 (VLIW5) GCN 2nd gen GCN 3rd gen[8]
Instruction set TeraScale instruction set GCN instruction set TeraScale instruction set GCN instruction set
Fab. (nm) GlobalFoundries 32 SOI GlobalFoundries 28 SHP GlobalFoundries 14LPP GlobalFoundries 12LP TSMC 40 28
die area (mm2) 228 246 245 245 250 210[9] 210 75 (+ 28 FCH) ~107 ? 125
Socket FM1, FS1 FM2, FS1+, FP2 FM2+, FP3 FM2+[a], FP4 AM4, FP4 AM4, FP5 FT1 AM1, FT3 FT3b FP4
Memory support DDR3 DDR4 DDR3L DDR4
3D engine[b] Up to 400:20:8 Up to 384:24:6 Up to 512:32:8 Up to 704:44:16[10] Up to 704:44:16 80:8:4 128:8:4 Up to 192:?:?
IOMMUv1 IOMMUv2 IOMMUv1 ?
Video decoder UVD 3.0 UVD 4.2 UVD 6.0 VCN 1.0[11] UVD 3.0 UVD 4.0 UVD 4.2 UVD 6.0 UVD 6.3
Video encoder N/A VCE 1.0 VCE 2.0 VCE 3.1 N/A VCE 2.0 VCE 3.1
GPU power saving PowerPlay PowerTune N/A PowerTune[12]
TrueAudio N/A  [13] N/A ?
FreeSync N/A 1
2
N/A ?
HDCP[c] ? 1.4 1.4
2.2
? 1.4
Supported displays[d] 2–3 2–4 3 4 ? 2 ?
/drm/radeon[e][15][16]   N/A   N/A
/drm/amdgpu[e][17] N/A  [18]   N/A  [18]  
  1. ^ APU models: A8-7680, A6-7480. CPU only: Athlon X4 845.
  2. ^ Unified shaders : texture mapping units : render output units
  3. ^ To play protected video content, it also requires card, operating system, driver, and application support. A compatible HDCP display is also needed for this. HDCP is mandatory for the output of certain audio formats, placing additional constraints on the multimedia setup.
  4. ^ To feed more than two displays, the additional panels must have native DisplayPort support.[14] Alternatively active DisplayPort-to-DVI/HDMI/VGA adapters can be employed.
  5. ^ a b DRM (Direct Rendering Manager) is a component of the Linux kernel. Support in this table refers to the most current version.

ProcessorsEdit

In January 2011 AMD introduced several processors that have implemented the Bobcat core. This core is in the following AMD Accelerated Processors:[6][19][20]

 
AMD C-60
Series ^ Model CPU clock
(MHz)
CPU
cores
TDP
(W)
L2 cache
(KiB)
Radeon
cores
GPU clock
(MHz)
DirectX
version
UVD DDR3 speed
C-Series C-30 1000 1 09 512 80 277 11 UVD 3 1066
C-Series C-50 1000 2 09 2*512 80 276 11 UVD 3 1066
C-Series C-60 1000/1333 (turbo) 2 09 2*512 80 276/400 (turbo) 11 UVD 3 1066
C-Series C-70 1000/1333 (turbo) 2 09 2*512 80 276/400 (turbo) 11 UVD 3 1066
E-Series E-240 1500 1 18 512 80 500 11 UVD 3 1066
E-Series E-300 1300 2 18 2*512 80 500 11 UVD 3 1066
E-Series E-350 1600 2 18 2*512 80 492 11 UVD 3 1066
E-Series E-450 1650 2 18 2*512 80 508/600 (turbo) 11 UVD 3 1333[21]
E-Series E1-1200 1400 2 18 2*512 80 500 11 UVD 3 1066
E-Series E1-1500[22] 1480 2 18 2*512 80 529 11 UVD 3 1066
E-Series E2-1800 1700 2 18 2*512 80 523/680 11 UVD 3 1333
E-Series E2-2000[22] 1750 2 18 2*512 80 538/700 11 UVD 3 1333
G-Series T-24L 0800 1 05 512 80 ? ? ? 1066
G-Series T-30L 1400 1 18 512 80 ? ? ? 1333
G-Series T-40N 1000 2 09 2*512 80 276 11 UVD 3 1066
G-Series T-44R 1200 1 09 512 80 276 11 UVD 3 1066
G-Series T-48E 1400 2 18 2*512 80 280 11 UVD 3 1066
G-Series T-48L 1400 2 18 2*512 80 ? ? ? 1066
G-Series T-48N 1400 2 18 2*512 80 492 11 UVD 3 1066
G-Series T-52R 1500 1 18 512 80 492 11 UVD 3 1066
G-Series T-56N 1600 2 18 2*512 80 492 11 UVD 3 1066
Z-Series Z-01 1000 2 5.9 2*512 80 276 11 UVD 3 1066
Z-Series Z-60[23] 1000 2 4.5 2*512 80 275 11 UVD 3 1066

^ E-Series & C-Series are standard parts, G-Series are embedded parts

See alsoEdit

ReferencesEdit

  1. ^ "List of AMD CPU microarchitectures - LeonStudio". LeonStudio - CodeFun. 3 August 2014. Retrieved 12 September 2015.
  2. ^ Hruska, Joel (July 16, 2010). "AMD Flip-Flops: Llano Later, Bobcat Bounding Forward". HotHardware.
  3. ^ Gunning for Mobilty: Intel and AMD Bet on a Mobile Internet, Dailytech.com, 2007-06-13, archived from the original on 2014-02-02, retrieved 2012-01-27
  4. ^ "Analyst Day 2009 Presentations". AMD. November 11, 2009. Retrieved 2009-11-14.
  5. ^ AMD 2003 Microprocessor Forum Slides: Slide 11 and Slide 22
  6. ^ a b AMD Embedded G-Series Platform (PDF), AMD, archived from the original (PDF) on 2013-09-11, retrieved 2012-01-27
  7. ^ "AMD Mobile "Carrizo" Family of APUs Designed to Deliver Significant Leap in Performance, Energy Efficiency in 2015" (Press release). 20 November 2014. Retrieved 16 February 2015.
  8. ^ a b "AMD VEGA10 and VEGA11 GPUs spotted in OpenCL driver". VideoCardz.com. Retrieved 6 June 2017.
  9. ^ "The Mobile CPU Comparison Guide Rev. 13.0 Page 5 : AMD Mobile CPU Full List". TechARP.com. Retrieved 13 December 2017.
  10. ^ Cutress, Ian (1 February 2018). "Zen Cores and Vega: Ryzen APUs for AM4 – AMD Tech Day at CES: 2018 Roadmap Revealed, with Ryzen APUs, Zen+ on 12nm, Vega on 7nm". Anandtech. Retrieved 7 February 2018.
  11. ^ Larabel, Michael (17 November 2017). "Radeon VCN Encode Support Lands in Mesa 17.4 Git". Phoronix. Retrieved 20 November 2017.
  12. ^ Tony Chen; Jason Greaves, "AMD's Graphics Core Next (GCN) Architecture" (PDF), AMD, retrieved 13 August 2016
  13. ^ "A technical look at AMD's Kaveri architecture". Semi Accurate. Retrieved 6 July 2014.
  14. ^ "How do I connect three or More Monitors to an AMD Radeon™ HD 5000, HD 6000, and HD 7000 Series Graphics Card?". AMD. Retrieved 8 December 2014.
  15. ^ Airlie, David (26 November 2009). "DisplayPort supported by KMS driver mainlined into Linux kernel 2.6.33". Retrieved 16 January 2016.
  16. ^ "Radeon feature matrix". freedesktop.org. Retrieved 10 January 2016.
  17. ^ Deucher, Alexander (16 September 2015). "XDC2015: AMDGPU" (PDF). Retrieved 16 January 2016.
  18. ^ a b Michel Dänzer (17 November 2016). "[ANNOUNCE] xf86-video-amdgpu 1.2.0". lists.x.org.
  19. ^ AMD Accelerated Processors for Mainstream Notebooks, AMD, 2012-01-17, retrieved 2012-01-27
  20. ^ All-In-One Desktops With AMD Accelerated Processors, AMD, retrieved 2012-07-02
  21. ^ The Brazos Update: AMD's E-450, Anandtech.com, 2011-06-01, retrieved 2012-01-27
  22. ^ a b https://www.amd.com/us/products/notebook/pages/consumer-notebooks.aspx#7
  23. ^ https://www.amd.com/us/products/notebook/tablets/Pages/tablets.aspx#3

External linksEdit