How Graphic RAM helps the LG G2 add 10% battery life on a single charge

How Graphic RAM helps the LG G2 add 10% battery life on a single charge
The LG G2 uses something called Graphic RAM to help extend battery life on the device. The name Graphic RAM is LG's own term for a technology called Panel Self Refresh. It comes into play when you are looking at the display on the phone and nothing is moving. This could happen while reading a website and the screen is static. With the usual technology, the display panel is being sent the same image by the GPU 60 times per second, which eats away at your battery life. When there is a change, the GPU sends out the new image and the cycle is repeated.

Graphic RAM (GRAM) replaces the constant communications between the display panel and the GPU when the screen is static by adding a memory cache, which displays the same image over and over and over again. When both the CPU and GPU both realize that nothing is changing, a screen capture is made and displayed. This allows parts of the SoC to shutdown, saving battery life and energy.

This is all happening incredibly fast, as you can imagine. The bottom line is a 10% increase in battery life. There are sure to be times when you will be grateful for every extra second of usage you have thanks to GRAM, before your phone shuts down.

source: AndroidAuthority

Related phones

  • Display 5.2 inches
    1920 x 1080 pixels
  • Camera 13 MP (Single camera)
    2.1 MP front
  • Hardware Qualcomm Snapdragon 800, 2GB RAM
  • Storage 32GB,
  • Battery 3000 mAh
  • OS Android 5.0 Lollipop



18. BraggingBob

Posts: 25; Member since: May 17, 2013

Looks like a good patent.

16. Igneel

Posts: 19; Member since: Jul 23, 2013

Someone need to implement translective LCD on phones. That'll surely save more battery!

15. juandante

Posts: 679; Member since: Apr 23, 2013

I thought this was a technology dating from the first LCD screen on the market... Shocked to see that this was not implemented in phones until today ? Nice move tough

13. dexter_jdr

Posts: 1163; Member since: Jun 28, 2012

im waiting for the shock roof water proof version of G2. im calling it , THE GSHOCK... oh wait...

12. bohdan4ik13 unregistered

In PR LG says that G2 is still comfortable to hold in one hand. I don't believe them, but GRAM is really great (if It boosts battery life on average use).

11. itsdeepak4u2000

Posts: 3718; Member since: Nov 03, 2012

Great, GRAM works when everything is static.

10. HeWhoDoesNothing

Posts: 158; Member since: Jul 15, 2013

All the more reason...

17. Charlie_boy

Posts: 71; Member since: Jan 04, 2013

thumbs up to you grammar guy! or is it vocabulary...

6. Charlie_boy

Posts: 71; Member since: Jan 04, 2013

This could be a main-stay on future device.. and all the more NOT to use live wallpapers!

5. bugsbunny00

Posts: 2267; Member since: Jun 07, 2013

G2 im loving it!

4. MrKoles

Posts: 368; Member since: Jan 20, 2013

I ´m happy that LG has now independent techniques and not stealing everything from other brands.

7. Jason2k13

Posts: 1491; Member since: Mar 28, 2013

Do you work for LG? Because I personally don't care if any companies steals a technology aslong as I'm buying a phone with the best features and battery life, us customers will have all the benefits.

14. Jaeel

Posts: 27; Member since: Apr 18, 2013

Wrong. The more there are thieves around, the less will there be R&D made, and the worse will the products sold to customers be.

8. Pedro0x

Posts: 271; Member since: Oct 19, 2012

This technology is from 2011 with the introduction of embedded display port 1,3, this is absolutely not new, however it is new in phones so I will give it to LG, but this is not LG technology however LG is the first to put it in phones.

9. rd_nest

Posts: 1656; Member since: Jun 06, 2010

Yea, it's an implementation of PSR technology. Good for LG..

2. Captain_Doug

Posts: 1037; Member since: Feb 10, 2012

Wow. I'm pretty impressed.

1. justsayit

Posts: 256; Member since: May 09, 2013

i can smell someone will follow lg

3. MrKoles

Posts: 368; Member since: Jan 20, 2013

Of yourse, everybody will! This is a great idea to save some battery life.

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