VIA Nano

The VIA Nano is a microprocessor of the company VIA Technologies. The architecture on which it is based, was announced in 2004 and launched on 28 January 2008. The VIA Nano processor was presented to the public on 29 May 2008 and has since been available for OEMs; before its release, the processor code-named Isaiah and CN was known. First systems are expected in the third quarter of 2008. The first prototypes of the Trinity platform on which the Nano is to be installed, were shown at Computex in 2008.

Technology

The Isaiah architecture of Nanos is a completely new development of VIA subsidiary Centaur Technology Represents the aim was to provide a significant performance improvement compared to the C7, however, while keeping the power requirements as low as possible. To create the hardware manufacturers an easier change of the VIA C7 VIA Nano, the new processor to the old 479 -pin infrastructure is pin compatible.

Due to lack of licenses VIA thereby continues to use its own VIA V4 bus protocol, and not Intel's AGTL . VIA's Nano used just like its predecessor C7 Intel 479 -pin infrastructure but is not Intel's Socket 479 hardware ( chipsets, motherboards, laptops, etc. ) due to the other bus protocol compatible. All VIA Nano CPUs are also becoming soldered directly, do not use a base and are therefore not interchangeable.

Model data

Isaiah

  • Revision:
  • L1 - Cache: 64 64 KB ( data instructions )
  • L2 cache: 1024 KB with processor clock
  • VIA PadLock: hardware support for AES encryption and hashing algorithms SHA -1 and SHA -256
  • VIA V4 bus protocol with 133, 200 MHz FSB ( 533 MHz quad pumped FSB 800 )
  • Design: NanoBGA2, used Intel 479 -pin infrastructure, all models are ungesockelt and are soldered directly
  • Operation voltage ( Vcore ):
  • Power loss (TDP ): 5-25 W
  • Release Date: May 29, 2008
  • Manufacturing Technology: 65 nm
  • The size: 63.3 mm ² at 95 million transistors
  • Clock rates: 1.0-2.0 GHz
  • Model numbers VIA Nano 2000 Series: L2100: 1.8 GHz with 25 W TDP, 200 MHz FSB
  • L2200: 1.6 GHz with 10 W TDP, 200 MHz FSB
  • U2250: 1.3 GHz with 10 W TDP, 200 MHz FSB
  • U2225: 1.3GHz 10W TDP, 200 MHz FSB
  • U2500: 1.2 GHz, 5 W TDP, 200 MHz FSB
  • U1700: 1.0 GHz with 10 W TDP, 200 MHz FSB
  • U2300: 1.0 GHz, 5 W TDP, 133 MHz FSB
  • Model numbers VIA Nano 3000 Series: L3100: 2.0 GHz with 25 W TDP, 200 MHz FSB
  • L3050: 1.8 GHz with 25 W TDP, 200 MHz FSB
  • U3200: 1.4 GHz, 5 W TDP, 200 MHz FSB
  • U3100: 1.3 GHz, 5 W TDP, 200 MHz FSB
  • U3300: 1.2 GHz, 5 W TDP, 200 MHz FSB
  • U3500: 1.0 GHz, 5 W TDP, 200 MHz FSB

Benchmarks

The VIA Nano has a partially significantly higher performance than the Intel Atom. Especially in arithmetic and logic calculations, an equal clocked Nano processor can significantly apart from the Atom processor, but also by an Intel Celeron M. For floating-point calculations, however, the Celeron M is weakened significantly during Isaiah is only just ahead of the Intel Atom. Compared to the performance of the VIA C7 Nano has nevertheless improved in both the ALU and FPU at about a factor of 2.5. Thus you reach the development goal in a significant performance increase compared to the C7.

Future

For the end of 2009 VIA aims to change the production of 65 nm to 45 nm. With the new manufacturing process, a dual-core variant of the Nano to appear. Furthermore, it will be possible in future higher FSB frequencies, since the change is started on a different base.

Market position

Due to problems of supply of Intel's Atom processor dodged some manufacturers on the C7 as well as the Nano processor and obstruct them in their products. Another advantage of VIA is that the nano partially has a higher performance than Intel's Atom with comparable power consumption.

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