jaykay4540
ACER ---> Master of misleading advertisement, the company know KG240A isn't well known yet.

KG240A
No Freesync (despite some news said it does, it doesn't support fresync) = No fancy tech like ULMB (anti flicker stuff) or nvidia 3D Vision tech = fixed height and cannot spin the monitor between landscape and portrait



XB240H
No G-sync (ASIA model doesn't support it, don't get cheated) = Nvidia 3D Vision Ready = Anti Flicker feature = adjustable height , can spin the monitor to landscape and portrait


EDIT: Golden rule of purchase ---> You get what you pay for

On the other hand....if you have compatible AMD GPU, why not opt for AOC G2460PF with Freesync? Only costs RM1200.
You can check the review of G2460PF here
http://www.redgamingtech.com/aoc-g2460pf-2...w-and-analysis/
http://www.tomsguide.com/us/aoc-g2460pf,review-3685.html

However....if you have Nvidia GPU.......the cheapest G-Sync monitor costs around RM2000.....ACER XB241H
Reason being AOC has stopped production of its cheaper G-Sync G2460PG and focus the production on AOC G2460PF.

Rumour has it....majority of panel intended for G2460PG keep on being failing to pass Nvidia imposed strict quality G-Sync hardware requirement, so AOC has enough of such 'requirement' and so.....the 'criteria failing panel' being repurposed for G2460PF instead....

So.....Good luck in making your choice.



This post has been edited by JohnLai: Sep 20 2016, 11:13 AM

Wait, the box said KG240A support freesync? If the box said so, then probably yes. There is a model without freesync capability too. Beware!!! (The only way to be sure --->Check the box)

Be careful of Acer model naming.
Example, there is KG240 (without A) listed at https://community.amd.com/docs/DOC-1432

MANUFACTURER MODEL SIZE LCD TYPE RESOLUTION RANGE INTERFACE LFC
Acer KG240 24" TBA 1920x1080 48-75Hz HDMI® No


Now, the KG240A claims it support 48-144Hz range using DisplayPort with LFC.
However, information at AMD website http://www.amd.com/en-us/innovations/softw...ming/freesync#5

Acer KG240A 24" AD-PLS 1920x1080 TBA-144Hz DisplayPort™ No


Notice the panel type? Advanced Plane to Line Switching (AD-PLS)
The funny part is......majority of sellers are listing KG240A as TN panel....so...which one is true?
Did you check the panel type on the box when you view it?

If box mention 144hz with 1ms stuff --->confirm it is TN panel. PLS panel can never reach 1ms.


EDIT: Did you have picture of the box you saw?
Just saw the box --> It is TN panel for sure, AMD Freesync logo is there.....

EDIT2: Something is fishy about the panel type. The price is too cheap to be good. (As I said...you get what you pay for) Maybe the panel is 6bit+FRC....or the panel has ghosting problem? Does the monitor even pass AMD Freesync certification process in first place? (Got conflicting info on panel type)

This post has been edited by JohnLai: Sep 20 2016, 08:57 PM

Hmm.....impossible lor......most of us doesnt have the stuff for proper review.

Example, to measure color uniformity, need to purchase Pro edition of colorimeter which cost RM1200 such as Spyder5Pro

Next, to check for ghosting at high framerate, either relies on eye or another high speed camera which costs a bomb too.


Anyone with acer monitor can open up the 'service menu' by pressing the button in this order counting from the left to right.


5, 5, 4, 4, 2, 3

Press Fifth button twice from counting from the left to right. Then press Fourth button twice. Press Second button and finally press Third Button.

A service menu with all the details will come out like this:

Click to zoom open its original size.

Example, you can see my Acer XB241H panel is sourced from AUO M240HW01 V8.
Googling 'panelook M240HW01 V8' and you will see panelook site on specific information on that panel.

Here some info on my panel found at panelook


Now you see why it is tough to make choice?

GTX? It seems like you will be stuck with G-Sync type unless if you plan to sell off your GPU and buy AMD....but there are few considerations.

Here some info about FreeSync and G-Sync.

1) Quality control
Every monitor made to support G-Sync need to pass nvidia strict certification checks. Example, all panel must support minimum variable refresh range of 30Hz, cannot has certain amount of ghosting or severe flickering at low refresh rate range and use certain approved panels only.

AMD hands off the panel selection stuff, quality control and refresh rate range to monitor manufacturers. This is why some freesync monitors have low refresh rate range (as the result, Low Framerate Compensation or known as frame doubling at lower fps will not work), has some pixel inversion and ghosting issues. But it is cheaper....

2) Freesync doesn't work in Borderless Windows Mode, it only works in Exclusive Fullscreen Mode. G-Sync works in both Mode.


As I said before......some Freesync panels are using the panels which failed G-Sync quality + certification checks .....So...if you ask if you should purchase KG240A....then its cheap price with somehow 144hz+1ms+FreeSync should tell you something about its panel quality....

.......Overall impression ---> Poor man cheapest G-Sync capable monitor.

So......180hz OC mode -->backlight bleeding like hell. Black becomes gray. 144Hz is still somehow 'okay'

Bad backlight uniformity ---> Upper area of the monitor kinda look like this http://www.overclock.net/t/1597127/acer-pr...0#post_25321888

I propose you to read that forum topic. Yes....green lines of MSI Afterburner issue exists.....

Color calibration wise by using Spyder4Pro.... 99% of SRGB. Uniformity --->Exactly as above link. Don't get me started with Spyder4Pro gamma and grayscale analysis result. The more you know.......the worse it becomes....


Edit: LOL, got someone accuses me on not having Spyder4Pro.
Proof


This post has been edited by JohnLai: Sep 21 2016, 07:46 PM

If so called strict nvidia Quality Controlled G-Sync panel already produced such result.......what do you expect from even cheaper alternative panel from AMD?

I would say....just buy whatever float the boat.

Hohoho.....Better don't buy the so called high end monitor yet....there are a lot of problem with quality control recently.

Read this guy post
http://www.overclock.net/t/1605608/asus-ro...u#post_25361051

Just buy it.
If one already poor, stick with poor man goods.
I mean.....how worse can the monitor be?


Life lesson:
Don't spend more than you can afford.

-.-....400fps? No tearing and no input lag problem? This means Vsync is automatically activated once gpu renders higher than 144hz. Hmmm.......AMD doesn't have Nvidia Fastsync equivalent...oh well...

As long as you are satisfied with it.

KG240 doesn't support freesync. Only KG240A does.

One more info, the actual range is 48hz - 144hz.
For its price, it is good bargain as long as the gpu can handle minimum 24fps for Low Framerate Compensation (Frame Doubling) to kick into action.

Seem like everyone is happy with KG240A so far aside of some minor color and stand issue.

Now then....since those methods doesn't work....let try another :
http://www.mtbs3d.com/phpbb/viewtopic.php?f=2&t=12997
- Turn off the monitor by pressing the Power button
- Press and hold the leftmost “button” and then push the Power button to turn on the monitor
- When you see the image on screen you can release the “button” and press the Menu button (the middle one) to call up the Service Menu
- When you finish with the service menu you can turn the monitor off and then on again to be back in the normal mode

Report back with a camera picture taken if it works. I am very interested with the panel being used.....

No, KG240A is not better than XB240H. It is not about it having freesync either.

Minor update on freesync.
As per Crimson Relive update, AMD added borderless fullscreen freesync support.