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Guru3D.com » News » Intel Demos low-power chips at ISSCC

Intel Demos low-power chips at ISSCC

by Hilbert Hagedoorn on: 02/10/2014 09:59 AM | source: | 6 comment(s)
Intel Demos low-power chips at ISSCC

Intel has been talking about low-power chips at ISSCC, in particular an ulta-low voltage processor which is capable of operating at voltages as low as 280mV, the design helps create future chips with a five-fold increase in energy efficiency. The 32nm chip has Pentium architecture, the prototype chip boasts a dynamic range reaching from 3MHz to 915MHz.

Intel calls this the Intel Near Voltage Threshold Processor, which can clock at a low speed while drawing just 280mV. When in 'turbo' mode, at these speeds something of a relative concept considering the top speed of the NVT process is under a gigahertz, the chip runs on just 1.2V, as bit-tech reports.

Intel also announced a new design method for floating-point processing, which allows the prototype processor to vary the precision of its calculations dynamically. The result, Intel claims, is a boost in energy efficiency of around sevenfold over traditional implementations. According to Intel's planned presentation, the variable-precision floating point fused-multiply add unit hits 52 to 162 gigaflops per watt at 1.45GHz. The technology will be used in Intel's future graphics products, the company confirmed, along with a vertex and pixel shading lighting accelerator capable of processing 2.05 gigavertices a second while drawing just 151mW.

The announcements come as Intel looks to lead the way into 'exascale' computing: processing at an exaflop level, rather than the gigaflop or teraflop levels of current systems. To reach that goal, the company is attempting to create processor designs that boast increases in energy efficiency of between fifty and a hundred times that of current chips.


Much of the company's technology in this regard is limited to the supercomputing market. The Many Integrated Cores (MIC) cards, Knights Ferry and Knights Bridge, as an example are fifty-core highly-parallel processors that are unlikely to find their way into the average gaming rig.

While the technology is being developed for supercomputing applications, however, it will trickle down to the consumer level over time. Intel has already declared war on ARM in the tablet and smartphone space with a system-on-chip (SoC) variant of its Atom processor family with in-built Wi-Fi connectivity. Building in a five-fold increase in energy efficiency would certainly help encourage device makers to make the leap from the ARM instruction set architecture to x86.

Intel's work also holds the promise of cooler, faster chips on the desktop. As the number of transistors on a processor increases, so too does the risk of current leakage and heat dissipation issues. A vast increase in energy efficiency will certainly help the company in those regards until a practical alternative to silicon can be found and proved to work on a commercial scale.

Sadly, the company has yet to offer a hint as to when the technologies shown of at ISSCC will be making their way to the production lines, instead preferring to talk up its Ivy Bridge processor family featuring tri-gate transistor technology - via bit-tech.net, see source link.



Intel Demos low-power chips at ISSCC




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Exodite
Senior Member



Posts: 2084
Joined: 2006-09-28

#4763096 Posted on: 02/10/2014 11:11 AM
Operating at 280mV? That's quite impressive!

Sure, not anywhere near full capacity or whatever but still, exciting times.

nicugoalkeper
Senior Member



Posts: 912
Joined: 2006-04-13

#4763323 Posted on: 02/10/2014 08:47 PM
If they can get higher speeds at same power drain then thy will be on next level.

lucidus
Senior Member



Posts: 11835
Joined: 2011-12-31

#4763335 Posted on: 02/10/2014 09:03 PM
Nice!!

Fox2232
Senior Member



Posts: 11808
Joined: 2012-07-20

#4806222 Posted on: 04/24/2014 06:02 PM
280mV while 3MHz | 1.2V while 915MHz.

It is nice that it can be saving watts while not used, good for mobile.
But what exactly is better on having 915MHz @ 1.2V versus 3.5GHz @ 1.2V on usual CPU today?

BLEH!
Senior Member



Posts: 6344
Joined: 2010-10-17

#4806299 Posted on: 04/24/2014 08:13 PM
I'm curious as to how far I can underclock my 3930K and how low a voltage :P

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