AMD low-power x86 core "Jaguar"

Dark Kaeser

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Ainda não é a apresentação oficial do sucessor do core "Bobcat", mas hoje durante a conferência Hot Chips, foram avançados alguns dados:

Today AMD starts the long process of revealing this chips, but things like the speeds, die areas, and most of the uncore were not revealed. In fact, AMD didn’t even mention that it is a 28nm part.
So what did they talk about? Jaguar supports one to four cores, has up to 2MB of L2 cache, and supports most of the latest instruction sets. The x86 additions that Jaguar adds to the Bobcat baseline are SSE4.1, SSE4.2, AES, CLMUL, MOVBE, AVX, XSAVE, XSAVEOPT, FC16, and BMI1. It also now supports 40 bits of physical memory, that would be 1TB or so, but the chip only has a one memory channel.
...
On the FP side, things are very different. Like Bobcat, the decoder can still issue two instructions per clock to two FP pipelines. Bobcat had 64-bit wide FP units, so 128-bit SSE instructions had to be processed with two passes though that pipe. This hurt performance but took less die area. With the shrink to 28nm, Jaguar’s cores have a lot more area to play with, so the FP pipes were widened to 128-bits for one pass SSE execution.
...
More profound is the IPC differences while running the different code bases used to measure the power gating. AMD is claiming more than 10% frequency gains with Jaguar, and the IPC goes up more than 15%. In total, those gains are pretty significant, and if the net SoC power comes in lower too, that is a clear win.
http://semiaccurate.com/2012/08/28/amd-let-the-new-cat-out-of-the-bag-with-the-jaguar-core/



As for the Jaguar core, AMD predicts that based on simulations it will deliver more than ten percent higher frequencies and more than 15 percent more instructions per clock than Bobcat, its current low power x86 core. Jaguar will appear in 2013 in AMD’s Kabini SoC for low-power notebooks and in Temash, AMD’s first sub-5W SoC, aimed at tablets.

The chip sports a re-designed load/store unit and an expanded 128-bit floating point unit. It includes several new instructions to support AES encryption, accelerate media processing and switch big/little endian structures for embedded systems. But the most novel aspect of the new core is its use of four x86 cores in a single unit sharing one L2 cache.

“From a core perspective we will call this a four-core unit that forms the building block of an SoC design,” said Jeff Rupley, an AMD Fellow and chief architect of Jaguar. “It’s possible to fuse off some cores for lower end or lower power designs,” he said.

AMD found sharing one 1-2 Mbyte L2 cache among the cores saves silicon area over using four private caches. It also provides a performance boost when only one or two single-threaded cores are running and can then access a larger memory pool.

“Generally the larger cache outweighs the latency” of needing an L2 cache interface, Rupley said. “There could be an app where the latency increase defeats the capacity boost, but across a large swath of apps, there’s a pretty positive uplift,” he said.
http://www.eetimes.com/electronics-news/4394786/AMD-s-Jaguar-packs-four-cores-in-one-for-mobile


De relembrar qual o objectivo deste core "Jaguar", que serão usados na plataforma "Kabini" e "Temash"

roadmapslides-mobile.jpg
 
A propósito do recente anúncio de resultados do Q3 2012, o CEO da AMD fez referência ao facto de já estarem em testes internos com o "Kabini", mas ainda nada em relação a datas de lançamento:

“We already have working silicon for many of our new 2013 products in house, including our next-generation 28nm Kabini APU, which is the successor to our highly successful Brazos platform and our first true SoC design. We are making good progress with the bring up of Kabini, which remains on track to launch in the first half of next year,” said Rory Read, chief executive officer of AMD, during a conference call with financial analysts.

Most importantly, Kabini will also integrated input/output capabilities in addition to a new memory controller, which will greatly simplify designs of netbooks, ultra-thin notebooks and other low-power devices. Kabini will be made using 28nm process technology.
http://www.xbitlabs.com/news/cpu/di...ady_Tests_Next_Gen_Low_Power_Kabini_Chip.html

mas pelas declarações dele, fica a ideia de que não será apenas o "Temash" a ser um SoC, o "Kabini" também será lançado como SoC.
 
Vale o que vale:

The OpenCL results for Dual-core Temash (presumably AMD A4-1200), and a quad-core Kabini for desktop also went online, dated February 11, 2013 and February 7, 2013 respectively. According to the OpenCL environment parameters, the GPU on dual-core Temash has two compute units running at 225 MHz and quad-core Kabini has the same GPU but running at a higher frequency of 496 MHz.


A little background information here, Kabini and Temash are based off the same SoC design, the design includes a maximum of four Jaguar CPU cores, and 2 GCN compute units (128 SPUs, 8 TMUs). Both will have FCH integrated on-die for a smaller device footprint, Kabini will target the 9W to 15W TDP space for value ultrathin notebooks, while Temash will target the tablet space with tablet-optimized I/Os.

And now we present you the numbers. These tests were performed under Windows OS with an OpenCL driver version 1124.2 (SDK 2.8).

j5yur6.png


OpenCL performance of Kabini-4C vs. Temash-2C, both having 2 compute units.



We are seeing a 120% clock speed difference here, translating to nearly 90% more performance for the quad-core Kabini APU. Another interesting point here is that we see the quad-core Kabini being comparable to the Radeon HD 6520G graphics (BeaverCreek GPU with 320 SPUs, 16 TMUs running at 400 MHz) on the AMD A6-3400M APU.

34t2ut1.png

OpenCL performance of Kabini-4C compared to Radeon HD 6520G (AMD A6-3400M APU)
http://semiaccurate.com/2013/03/08/opencl-performance-of-next-gen-low-power-apus/#.UTpy5lGRthE
 
Sim, para netbooks, ultrabooks e thins clients e não esquecer que a PS4 será baseada nestes bixinhos (ainda que numa versão mais musculada)
 
o temash é até para tablet's , e outros dispositivos sem arrefecimento activo ; vai ter um TDP abaixo dos 5W.
O Kabini é que será para netbooks e ultrabooks , .... ;
 
15q80lg.jpg

http://www.worldhostingdays.com/downloads/2013/mFtag3c.pdf


We found some details on three embedded SKUs in specifications of upcoming Mini-ITX motherboard... We could not confirm these specifications from any other source, therefore please treat them as a rumor.

Specifications for unnamed motherboard include three Kabini "G-Series" microprocessors. On the low-end, it lists a dual-core APU with 1 GHz frequency and 9 Watt TDP. Another dual-core chip will operate at 1.65 GHz, and it will have 15 Watt TDP. On the high-end, there will be a low voltage part with 4 cores, 2 GHz clock frequency and 25 Watt TDP. All processors will support up to 8 GB of DDR3-1600 and DDR3-1866 memory.
http://www.cpu-world.com/news_2013/2013041501_Rumored_details_of_embedded_Kabini_APUs.html

Primeiro Opteron APU com base no core low power "Jaguar".
 
Apenas olhando ao desempenho, não impressiona. Resta saber os consumos, para ver até que ponto é bom ou mau a eficiência deste em relação ao seu desempenho.
 
AMD Targets High-Growth, Embedded Markets with New AMD Embedded G-Series System-on-Chip

AMD today announced the new AMD Embedded G-Series System-on-Chip (SOC) platform, a single-chip solution based on the AMD next-generation “Jaguar” CPU architecture and AMD Radeon™ 8000 Series graphics.

Next-generation CPU core


  • Next-generation “Jaguar” core with innovative, new shared L2 Cache
  • Enterprise-class feature of ECC and fast memory support

Ideal platform for low-power and high-performance designs


  • For Industrial Control and Automation: low-power and heterogeneous computing advantage enabled by the integrated GPU deliver more than 150 GFLOPS of compute performance over and above the compute capability of the x86 CPU cores[SUP]6[/SUP]
  • For Digital Signage: eye-catching, high-definition multimedia content delivery connected through a variety of display technologies (DP, HDMI™, VGA, LVDS)
  • For Electronic Gaming Machines: dedicated hardware acceleration engines for video decode (UVD) and encode (VCE) as well as digital content management (SAMU)
  • For SMB storage: high-performance SOC in a small form factor with a myriad of integrated USB and SATA I/O enables a fanless design, reducing system cost


Models and pricing

Models available at launch include:

  • GX-420CA SOC with AMD Radeon™ HD 8400E Graphics
    • Quad-core, 25W TDP, CPU freq. 2.0GHz, GPU freq. 600MHz
  • GX-415GA SOC with AMD Radeon™ HD 8330E Graphics
    • Quad-core, 15W TDP, CPU freq. 1.50GHz, GPU freq. 500MHz
  • GX-217GA SOC with AMD Radeon™ HD 8280E Graphics
    • Dual-core, 15W TDP, CPU freq. 1.65GHz, GPU freq. 450MHz
  • GX-210HA SOC with AMD Radeon™ HD 8210E Graphics
    • Dual-core, 9W TDP, CPU freq. 1.0GHz, GPU freq. 300MHz
  • GX-416RA SOC
    • Quad-Core, 15W, CPU Freq. 1.6GHz, No GPU

Pricing ranges from $49 - $72 for the SKUs.
http://www.amd.com/us/press-releases/Pages/amd-embedded-gseries-2013apr23.aspx

Á partida e excepto a memória ECC que deverá ser exclusiva destes G Series, os "Kabini" deverão ter as mesmas especificações.

EDIT:
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Última edição:
CPU BASTANTE interessante!

Uma solução completa single chip, quad core até 25W TDP é deveras interessante. Já estou a ver uma nova geração de mini desktops, NAS, mediacenters bem compactos com estes bixos.

Então as versões de 9 e 15W estão ainda mais engraçadas.

Vai ser possível ter boards mini-ITX com tudo integrado, até HDD/SSD, já que que sendo um SoC liberta muito espaço para por 1 mini pci-E, um miniSATA e se calhar até cabe um disco 2,5"!
 
Eu pessoalmente gostei do que vi em relação a este cpu. Não vai arrebentar escalas em benchs, mas não é esse o objectivo. Trabalhos deste género por parte da AMD merecem o meu elogio.
 
Acer introduces 11.6 inch touchscreen notebook with AMD Temash chip


The Acer Aspire V5-122 is a Windows 8 notebook with an 11.6 inch, 1366 x 768 pixel display and an AMD Temash processor. It’s expected to have a starting price of $450
...
The notebook reportedly features an AMD A6-1450 “Temash” quad-core processor with Radeon HD 8280 graphics, 2GB of RAM, a 500GB hard drive, WiFi, Bluetooth, VGA, HDMI, USB 3.0, and gigabit Ethernet.
Acer’s notebook has a 3 cell battery and weighs about 3.3 pounds.
http://liliputing.com/2013/04/acer-...ouchscreen-notebook-with-amd-temash-chip.html
 
- Signature Book™ - Super Slim, Dual HDMI SIGNAGE PLAYER SI-22

AMD Embedded G-Series SOC (Max. 4 [email protected])
Integrated 80 Core DirectX 11.1 GPU in processor
Support DASH function for remote control.
iSMART - for EuP/ErP power saving, auto-scheduler and power resume
Supports 2x HDMI 1.4a
Supports 1 x DDR3-1600 UDIMMs, Single Channel (Max.8GB)
2x mPCIe(x1) slots for mSATA, WiFi + Bluetooth, 3G, and TV tuner optional board
Fanless, Supper Slim and compact design
http://www.ibase-usa.com/digitalsignage/si-22.html#Specification



- congatec presents first x86 quad-core SOC Type 6 COM Express Compact Module

This single-chip solution is based on AMD technology and integrates the next-generation computing power of the “Jaguar” based processor and AMD Radeon™ graphics cores in a compact package.

congatec currently offers four processors from the AMD Embedded G-Series SOC platform, ranging from the 1.0 GHz dual-core AMD GX-210HA (1MB shared L2 cache) with only a 9 Watt TDP to the 2.0 GHz quad-core AMD GX-420CA (2MB shared L2 cache) with a 25 Watt TDP.
http://www.congatec.com/news-events...re-soc-type-6-com-express-compact-module.html

conga-TCG COM Express Type 6


- GE to Feature Latest AMD Processor Technology in New Industrial Computing Modules to Enhance Customer Choice

GE Intelligent Platforms today announced that it will develop a range of rugged COM Express modules based on the new AMD (NYSE: AMD) Embedded G-Series SOC (system on a chip) processors. First shipments are expected in late2013. Including AMD processors in the new products will enable GE to develop more compact ‘Type 10’ modules in the so-called ‘mini’ format, measuring just 84mm x 55m and allowing customers to deploy them in a broader range of environments.
http://www.ge-ip.com/news/ge-to-fea...ting-modules-to-enhance-customer-choice/n3084
 
Review do AMD Temash A6-1450 na Notebookcheck.net.
From a technical point of view, Kabini and Temash are most likely one and the same chip. However, clock rate and features of the models are adapted to their field of application, and so, their TDP ranges from about 3 to 25 Watt. The four CPU cores of the SoC are based on the new Jaguar architecture, which, alike Bobcat, aims in minimizing power consumption and size. Thanks to a 128 Bit FPU and further improvements, the performance per MHz has increased by about 15% according to AMD. We will check this later. Furthermore, it also features modern instruction set extensions like AES and AVX.

In the graphics card, the older VLIW5 architecture was replaced by the more efficient GCN design. It also houses 128 shaders (two compute units) instead of 80. Besides a significant performance gain, the new GPU also implements a wide feature set including DirectX 11.1 support.

As "genuine" SoCs Kabini/Temash not only integrate CPU and GPU, but also the memory controller (single channel DDR3-1600) and the Southbridge. The latter comes with modern interfaces like SATA-III and USB 3.0, so notebook manufacturers do not need additional chips for these.
Jaguar vs. BobcatJaguar vs. Bobcat

28 nm lithography of TSMC
4 "Jaguar" CPU cores
about 110 mm² die size (estimation)
32 + 32 KB L1 cache for data and instructions (per core)
2 MB L2 cache (total)
SSE (1, 2 graphics unit (DirectX-11.1, 128 GCN shader)
UVD 4.2 v, 3, 3S, 4.1, 4.2, 4A), x86-64, AES, AVXintegratedideo decoder, VCE 2.0 encoder
Single channel DDR3(L) memory controller up to 800 MHz (DDR3-1600)
integrated Southbridge (PCIe 2.0, SATA-III, USB 3.0, HD Audio)

Verdict
In review: AMD A6-1450 APUIn review: AMD A6-1450 APU

AMD's new APU leaves a mixed impression in our first test. In consideration of current software, it does not appear to be sensible to incorporate four relatively slow cores. This is not only true in applications. The weak CPU part also slows down the relatively powerful graphics unit. Faster Kabini APUs with up to 2.0 GHz clock rate could perform better here.

However, let us not forget about the positive aspects: The performance is remarkable compared to Intel's Atom and current ARM SoCs. In addition, the performance reserves are absolutely sufficient for office and multimedia. Furthermore, the power consumption is low enough that also small devices can drain the waste heat without problems.

There is no doubt that the new Jaguar architecture has potential. It's up to the manufacturers to launch a broad choice of attractive models. As so often, the price might finally decide between success and failure.

Um SoC x86 muito interessante com grande capacidade de multi-tasking já que está ao nível dos ULV Trinity. Em single-thread está ao nível dos Bobcat a 1.7Ghz logo apresenta grandes ganhos normalizando a performance por frequência.
No GPU, em testes que não dependem do CPU atinge valores ao nível da HD4000. Em testes dependentes do CPU só atinge o nível dos Bobcats. Infelizmente para jogos como o Dirt isto significa que reduzir detalhes e a carga no GPU não faz grande coisa para melhorar os fpss pois o CPU é que é o factor limitante.

Quanto a medições de consumos, eles só conseguiram fazer as medições do notebook por completo. Os valores são bastante promissores. Em idle, todo o notebook só consumia entre 5W-10W.
Sobre carga o consumo atinge até um máximo de 21W o que indica que o TDP do APU deve andar entre os 8W e 15W dependendo do Turbo mode.

Em suma, um APU com imenso potencial e que pode perfeitamente ser usado em tablets e híbridos com óptima capacidade de multitasking - permite ver vários vídeos em 1080p ao mesmo tempo - e boa capacidade gráfica.
Quanto ao Acer V5, custa imenso dinheiro, tem pouca capacidade de bateria e um HDD em vez de um SSD logo é um notebook da treta.
 
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