Just a warning, enabling 120Hz on the 3D screen murders battery life.

[Flea0]

I was getting barely 2 hours out of my G750JX before realizing that twice the refresh rate is a major battery life killer, even when simply browsing the web. Just FYI.

[DeltaActual]

Mine is non 3D and set to a 100Hz. Can't see the difference in battery life.

[Flea0]

rajhesh my laptop gets 3.5-4 hours of normal (aka non gaming) use. You can run the screen at 60,100,110,120 hz and even other intermediate values if you use other tools.
Delta I did three almost complete battery rundowns while working around the house last week and I can assure you I was getting 2.5 hours battery tops. The CPU wasn't being used by any program other than my browser and the pdf reader. I switched to 60hz yesterday and this morning the battery was at 30% after almost 3 hours of use.

[rajeshtechfreak]

Flea0 wrote:
rajhesh my laptop gets 3.5-4 hours of normal (aka non gaming) use. You can run the screen at 60,100,110,120 hz and even other intermediate values if you use other tools.
Delta I did three almost complete battery rundowns while working around the house last week and I can assure you I was getting 2.5 hours battery tops. The CPU wasn't being used by any program other than my browser and the pdf reader. I switched to 60hz yesterday and this morning the battery was at 30% after almost 3 hours of use.

Hmmm Thanks . .What are the tools ?
Does reducing the framerate improve the battery life ??
How's the rest of the performance ?? How's your experience with the laptop been 🙂
Also do you carry it around often ? I will be taking it to college on some days.

[Flea0]

nvidia control panel -> change resolution -> customize -> create a custom refresh rate.
I'm not sure about the second question, the point I'm making here is that 120hz certainly seems to draw a lot more power.
The rest of the performance is just fine. the laptop is quiet, goes like hell with the 840 pro ssd and not a single game out there needs to be played below high settings if you know what you're tweaking. I have carried it around with a targus backpack for 18" laptops and it isn't a bother at all.
I am currently looking for a black sticker to cover the glowy ROG logo on the back because it's a bit too cheesy.

[hmscott]

Flea0 wrote:
I was getting barely 2 hours out of my G750JX before realizing that twice the refresh rate is a major battery life killer, even when simply browsing the web. Just FYI.

Flea0, I wonder if setting it to 120hz triggers enabling the 3D emitter circuit. I would think you would have to have a 3D source running to enable it, but maybe it is triggered by the refresh setting.

Like others I had my refresh rate set to 100hz (Chi Mei) and it didn't shorten battery life noticeably.

BTW, would you please post a screen shot, or list of specs, from the AIDA64 Engineer Edition about the screen?

Thanks Flea0!

[Flea0]

yeah my friend has the asus N56VZ with the 650M and he's having MASSIVE FPS issues with the Witcher 2, which I played on a 5830M... he's constantly juggling between drivers that make optimus happy and drivers that improve the discrete GPU performance...

btw, here are my screen specs. I am experimenting with 96Hz for movies because some people suggested that using a multiple of the 24 fps they are shot at makes for smoother viewing.

[hmscott]

Flea0 wrote:
yeah my friend has the asus N56VZ with the 650M and he's having MASSIVE FPS issues with the Witcher 2, which I played on a 5830M... he's constantly juggling between drivers that make optimus happy and drivers that improve the discrete GPU performance...
btw, here are my screen specs. I am experimenting with 96Hz for movies because some people suggested that using a multiple of the 24 fps they are shot at makes for smoother viewing.

Thanks for the screen details Flea0 🙂

That sounds like something to try, 24x4 = 96... any difference?

I am looking forward to the Nvidia G-Sync coming out wide, only runs as fast of refresh as the computer can keep up:
http://www.geforce.com/hardware/technology/g-sync