Power Optimization in Graphics Architecture

Power Optimization in Graphics Architecture

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Description: Agenda- The New World, A Little Physics: Why the New World Requires New Optimizations, Optimizing the Intel® HD Graphics Architecture for the New World. Strong Desire for More Performance: More compelling experiences, More computation in a smaller package!, High-DPI “retinal” displays – 2-4x more pixels, Range of visual experiences: 2D, 3D, media, Combined together - All-day computing at higher performance. What Determines Power- Power has two main components – “Dynamic Power” and “Leakage”.

Dynamic Power- Goes up with switching transistor count, Goes up with frequency, Goes up even faster with voltage (V2), Leakage- Goes up with powered transistor count, Doesn’t matter what the frequency is Goes up very fast with voltage (V3 or so), But frequency and voltage are themselves related. Voltage, Frequency and Power- The voltage vs. frequency curve tends to have an inflection point- Fmax@Vmin: the fastest the part can operate at Vmin, In the voltage-scaling region, power increases much faster than frequency: Voltage is scaling roughly linearly with frequency, Dynamic power goes up as V2f, Leakage goes up roughly as V3.

Voltage, Frequency, Power and Size- Consider two parts: One 2x the size of the other, Designed to the same rules, so same Fmax@Vmin. With lots of available power, both parts are running faster than Fmax@Vmin, and the big part performs much better than the small part, With less available power, the small part is above Fmax@Vmin, but the big part is not; the performan ...Please navigate Paper pages for more details.

 
Author: Jason Ross, Dr. Wen-Fu Kao (Fellow) | Visits: 2613 | Page Views: 3136
Domain:  High Tech Category: Displays Subcategory: Graphics 
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Link Back: Intel Corporation
Short URL: https://www.wesrch.com/electronics/pdfEL1NAB7V3ZBEM
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Contents:
Intel® Processor Graphics:
Power Optimization in Graphics Architecture
Jason Ross – Graphics Architect, Intel Corporation
Dr. Wen-Fu Kao – Graphics Media Architect, Intel Corporation

GVCS004

Agenda
• The New World
• A Little Physics: Why the New World Requires New Optimizations

• Optimizing the Intel® HD Graphics Architecture for the New World
• What Do the Optimizations Deliver?

2

The
New
World

3

The Transition

4

The Transition
The Old World

• Physically big - lots of cooling
• Often plugged in

5

The Transition
The Old World

• Physically big - lots of cooling
• Often plugged in

6

The New World

• Smaller, thinner, lighter – much
less cooling
• May have smaller voltage
regulators

The Transition
The Old World

• Physically big - lots of cooling
• Often plugged in

The New World

• Smaller, thinner, lighter – much
less cooling
• May have smaller voltage
regulators

Power Limits are a first-order consideration when designing new computing devices!
7

Strong Desire for More Performance
• More compelling experiences

Augmented
Reality

Game FX
Physics

Media Analytics

Computational
Photography

• More computation in a smaller package!

• High-DPI “retinal” displays – 2-4x more pixels
• Range of visual experiences: 2D, 3D, media

• Combined together - All-day computing at higher performance!
8

The Challenge: How Do We Fit Intel® Core™ Performance
into Highly Mobile Fanless Systems?

Ex: An 11.6” system that is 8mm thick requires an SOC