Intel i5-4300Y CL8064701558601 Data Sheet

Intel S2DDT reduces display refresh memory traffic by reducing memory reads

required for display refresh. Power consumption is reduced by less accesses to the

IMC. Intel S2DDT is only enabled in single pipe mode.

Intel S2DDT is most effective with:
•

Display images well suited to compression, such as text windows, slide shows, and

so on. Poor examples are 3D games.

•

Static screens such as screens with significant portions of the background showing

2D applications, processor benchmarks, and so on, or conditions when the

processor is idle. Poor examples are full-screen 3D games and benchmarks that

flip the display image at or near display refresh rates.

Intel Graphics Dynamic Frequency Technology is the ability of the processor and

graphics cores to opportunistically increase frequency and/or voltage above the

guaranteed processor and graphics frequency for the given part. Intel Graphics

Dynamic Frequency Technology is a performance feature that makes use of unused

package power and thermals to increase application performance. The increase in

frequency is determined by how much power and thermal budget is available in the

package, and the application demand for additional processor or graphics

performance. The processor core control is maintained by an embedded controller.

The graphics driver dynamically adjusts between P-States to maintain optimal

performance, power, and thermals. The graphics driver will always try to place the

graphics engine in the most energy efficient P-state.

The Intel DPST technique achieves backlight power savings while maintaining a good

visual experience. This is accomplished by adaptively enhancing the displayed image

while decreasing the backlight brightness simultaneously. The goal of this technique is

to provide equivalent end-user-perceived image quality at a decreased backlight

power level.
1. The original (input) image produced by the operating system or application is

analyzed by the Intel DPST subsystem. An interrupt to Intel DPST software is

generated whenever a meaningful change in the image attributes is detected. (A

meaningful change is when the Intel DPST software algorithm determines that

enough brightness, contrast, or color change has occurred to the displaying

images that the image enhancement and backlight control needs to be altered.)

2. Intel DPST subsystem applies an image-specific enhancement to increase image

contrast, brightness, and other attributes.

3. A corresponding decrease to the backlight brightness is applied simultaneously to

produce an image with similar user-perceived quality (such as brightness) as the

original image.

Intel DPST 6.0 has improved the software algorithms and has minor hardware

changes to better handle backlight phase-in and ensures the documented and

validated method to interrupt hardware phase-in.

Mobile 4th Generation Intel

®

 Core

™

 Processor Family, Mobile Intel

®

 Pentium

®

 Processor Family, and Mobile Intel

®

 Celeron

®

Processor Family

July 2014

Datasheet – Volume 1 of 2

Order No.: 329001-007

57