G-SYNC vs FPS limiting (30 or 60 fps)

Will I get similar smoothness when playing at limited FPS: 30 or 60 (with 60 Hz display), compare to GSync technology??

 

Nope, you'll just get a capped FPS. Tearing will still be there.

 

I thought tearing only occurs when your frame rate goes over your refresh rate?

 

No, tearing happens when your monitor and GPU are not in sync

 

but it's going to be in sync: if FPS will be set (limited) on 30, so LCD display will double the frame rate to 60 FPS itself....;
It's like with PAL TV system: the video is at 25 FPS, the display double it to achive 50 FPS (Hz)

 

Why don't you leave V-Sync off, cap to 30 FPS, and see for yourself if there is tearing?

 

If you are 100% pegged at the capped FPS then it likely will not show tearing. But it still can occasionally. G-sync is great to allow for higher details and/or resolution where the FPS may bounce around a bit under the capped FPS. And especially if you have a fast 120Hz or 144Hz LCD where the FPS may vary a lot you don't get any tearing.

 

Lots of good reading on this topic, but here's a quick description from NVIDIA why you still get "stutters" even Vsync'd:

"Problematically, GPUs don’t render at fixed speeds. In fact, their frame rates will vary dramatically even within a single scene of a single game, based on the instantaneous load that the GPU sees. So with a fixed refresh rate, how do you get the GPU images to the screen? The first way is to simply ignore the refresh rate of the display altogether, and update the image being scanned to the display in mid cycle. This is called ‘VSync Off Mode’ and it is the default way most gamers play. The downside is that when a single refresh cycle show 2 images, a very obvious “tear line” is evident at the break, commonly referred to as screen tearing. The established solution to screen tearing is to turn VSync on, to force the GPU to delay screen updates until the display cycles to the start of a new refresh cycle. This causes stutter whenever the GPU frame rate is below the display refresh rate. And it also increases latency, which introduces input lag, the visible delay between a button being pressed and the result occurring on-screen.

Worse still, many players suffer eyestrain when exposed to persistent VSync stuttering, while others develop headaches and migraines. This drove us to develop Adaptive VSync, an effective, critically-acclaimed solution. Despite this development, VSync’s input lag issues persist to this day, something that’s unacceptable for many enthusiasts, and an absolute no-go for eSports pro-gamers who custom-pick their gaming hardware to minimize the life-and-death delay between action and reaction."

http://www.geforce.com/hardware/technology/g-sync/technology

Personally, being I don't have Gsync hardware, I leave V-sync off but then cap the framerate using NVIDIA Inspector to 30-60 depending on the game. Works well most of the time, but there are still random out of sync frames but don't pay the penalty of input lag from V-sync.

 

....I'm on Intel HD 3000, that why
....considering to buy a new laptop and thinking about G-Sync is it worth to spend extra money on it

 

If you can afford it, definitely get it

 

^^^ This

After trying it on the Clevo P770ZM-G with 980m, I ended up getting a 27" 1440p 144Hz G-sync LCD and a desktop GTX 980 Ti with a hexacore Intel i7-5820k CPU.

 

..ok, thanks!

...maybe I'll get some ROG series, G751 JY....

 

if your fps is lower than the monitor's the frame time is longer

 

Only true with v-sync.

 

That's not good for anything other than surfing the web and playing solitaire bro.

 

Please dont, unless you are ok with a laptop that throttle and has flaky USB 3.0 ports. Basically all the last 3 generations of ROG laptops have bad left side USB ports where when you connect an external HDD, it would connect/ disconnect randomly.

ASUS cannot make a laptop with properly working USB ports. Taiwanese junk. No surprise.

 

Laptops with Gsync are few and far between at the moment. They tend to appear only on higher-end gaming laptops, and carry a price premium.

I'd say that it's worth getting Gsync as a secondary factor in your buying decision. If you're looking for a big heavy gaming-grade laptop, with a decent GPU and a high-enough resolution screen (above 1080p) where Gsync would be useful, then go for it.

But I wouldn't in any situation choose a laptop BECAUSE it has Gsync, if the rest of the laptop features (CPU, GPU, price, weight, display quality, etc) don't fit my needs. Remember, something like Gsync to eliminate screen tearing is a nice-to-have. It's not an essential part of owning or using a laptop.

 

Though the G751 is the quietest and coolest-running laptop (temperature-wise) I've ever used. Even under full load, you can barely hear it.

 

I could care less even if it is the fastest or quietest laptop in the planet, if basic functions of a laptop don't work, it's no good to me. Please read this:

http://forum.notebookreview.com/threads/returned-my-asus-g751jy.771680/

 

I read that a while back. Also currently using a G751 myself. Perfectly aware of its issues.

 

Clevo is tawainese, is it junk too? I don't think so...

 

A very large number of computer manufacturers are Taiwanese. If the company was around in th.e 1980's, then there is a very good chance that it was part of the Taiwanese tech boom.

Acer, Asus, clevo, gigabyte, MSI are all taiwanese. Even laptop manufacturers that aren't Taiwanese (Dell, HP, etc) will often source their parts from Taiwanese component manufacturers like Asus.






Sent from my SM-G900V using Tapatalk

 

When I said Taiwanese junk I meant that brand Asus is Taiwanese junk. There are a lot of high quality products though. Just not Asus lately.

 

I am using the first of these new generation of Asus ROG laptops (G73JH) since 2010 (i pre-ordered it). And i have no complaints whatsoever.
Just thought to let you know.

I would like to add that I was not too impressed with the build quality of the Asus. I had been using a Fujitsu Siemens laptop before that which was build like a tank. But in the end my Asus has lasted longer due its performance.

 

ASUS ROG laptops are somewhat on a lottery system - you might get one without any issues that runs flawlessly (like mine so far), or you might get one plagued with problems, especially if you're an early adopter of their latest model.

A ROG that runs perfectly is a fine machine that's usually on the better end of the price/performance scale. If you get one that's a lemon, better to just return it - you don't want to deal with ASUS support.

I'm still amazed on a daily basis at how cool & quiet this machine is. There is no difference in keyboard surface temperature between idle and load, and barely any noise difference. When playing Diablo 3 at max settings, the GPU tops out around 57C.

 

Agreed, my experience was quite similar... Can't say the same with Alienware lol..

 

What about using "Adaptive Vsync Half Refresh Rate" method compare to G-sync?
Someone has any experience with that?

 

Same as Adaptive V-Sync, but caps at half refresh rate. So if your screen is 60Hz, it will cap at 30 FPS V-Synced. If you drop below 30 FPS, V-Sync will disengage and there will be tearing. Not comparable to G-Sync.