1November 11, 2015

GAME CHANGING DESIGN

Shlomit Weiss –

VP Platform Engineering Group, Intel corp.

1

2November 11, 2015November 11, 2015

Short History

Frequency

Wi Fi

Performance

2ND GENERATION CORE

Low PowerHigh Performance

6TH GENERATION CORE

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Conflicting requirements

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Global Team

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Parallel Optimization in all fronts

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Principles of parallel optimization• Define targets for each parameters in clear measureable way

– At SOC level, block level when relevant

• For each milestone check all vectors– Need tools / systematic ways to check status

• Power –Cdyn, frequency, cost-area, execution schedule

• Convergence done by iterations• Clear tradeoffs (the simpler that each designer can do)

– 1:2 performance / power (most difficult)– Can not go back in frequency for features

• Do not make decisions without understating the impact on the conflicting vector

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6November 11, 2015

Best User Experience with Lowest Power• Enable sleep states for SOC and platform

components (C-states)– Deeper sleep more power saving=> close

every transistor– Need fast weak up => smart weak up

algorithms– Complex platform dependency

• Design techniques:– Independent power plans– Fine grain clock gating

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VCC Core(Gated)

VCC Core(Gated)

VCC Core(Gated)

VCC Core(Gated)

VCC Core(ungated)

VCC SA

Processor GraphicsSlices and fixed function

VCC Periphery

VCC Periphery

Note: Not to scale

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Best User Experience with Lowest Power

0

2

4

6

8

10

12

14

16

18

20

C0P1

C0P2

C0P0

C2C3

C4C1

Time

Pow

er [W

]

• Energy – performance states– P0 highest performance– P1, P2… energy efficient lower performance– C-states – low power sleep states

• Design Techniques:– Independent frequency for different functional blocks– Intel Turbo Boost and Speed Shift Technology autonomous controls

Very high dynamic power range 4.5W 180W

8November 11, 2015

Results – 6th Generation Core:Best Processor Ever

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Up to

3x longer battery life3

10 hours full HD

Video playback

Up to

2.5Xfaster

performance1

Up to

30x graphics

improvement2

1 Source: Intel Corporation. Based on SySmark 2014 scores comparing Intel® Core™ i5-6200U and Intel® Core™ i5-520UM. See Appendix for configurations2 Source: Intel Corporation. Based on 3DMark Cloud Gate Gfx scores comparing Intel® Core™ i5-6200U and Intel® Core™ i5-520UM. See Appendix for configurations3 Source: Intel Corporation. Based on local HD video playback score comparing Intel® Core™ i5-6200U and Intel® Core™ i5-520UM. See Appendix for configurations

Most scalable design ranging parts: Power – 4.5W to 91W => 20x scalingPackage – 4X 20x16.5 to 37.5x37.5 => 4x scalingMany SKU enable in parallel => 5 SKUs in first launch

9November 11, 2015

Parallel convergence Deciding tradeoffs together

Many conflicting requirements