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Intels New Processor Architecture

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Intel's New Processor Architecture (The High-K gate) What we will be covering: ... Acts as switches for digital logic allows them to control a strong signal with ... – PowerPoint PPT presentation

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Title: Intels New Processor Architecture


1
Intels New Processor Architecture
  • (The High-K gate)

2
What we will be covering
  • What is a transistor?
  • What is Leakage
  • Why is the High-K gate so great?
  • The Nehalem Project (Core i7s)
  • High-K gates
  • 45nm technology
  • Integration of memory controller

3
What is a transistor?
  • Does two things
  • Acts as switches for digital logic allows them
    to control a strong signal with a weak signal.
  • And amplifies the signal
  • Critical for cascading logic gates. Without
    amplification we would only be able to send it
    through 3 gates before the signal becomes too
    noisy.
  • In the world of digital logic, AND and OR do not
    exist. Only NAND and NOR and NOT do.
  • You can create AND and OR by combining NAND and
    NOR and NOT.

4
What does a NOT gate look like?
  • NOT

5
What does NAND look like?
  • NAND

6
What does NOR look like?
  • NOR

7
This brings us to leakage
  • Example NOT gate.
  • Even though A is high (5 V) there is still some
    current to F.
  • This ties into thresholds

8
New High-K gates
  • "High-k" stands for high dielectric constant.
  • Old transistors use silicon dioxide to make
    their transistors.
  • New High-K transistors use hafnium dioxide for
    their transistors.
  • Because high-k gate dielectrics can be several
    times thicker, they reduce gate leakage by over
    100 times compared to old transistors.
  • Runs cooler cooler more power.

9
(No Transcript)
10
Core i7s
  • High-K gates allows intel to pack more
    transistors into a die.
  • More room for more stuff. Like a memory
    controller.
  • Integrate memory controller directly onto the
    processor.
  • AMD already has been doing this for 5 years
  • Faster transfer time between memory and processor
    now (no more Front Side Bus)
  • No more intermediate device.

11
What is Front side Bus?
12
(No Transcript)
13
References
  • Intel http//www.intel.com/technology/silicon/hig
    h-k.htm
  • Wikipedia http//en.wikipedia.org/wiki/Transistor
  • Our Book Computer Architecture and Organization
    An Integrated Approach
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