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Iiyama GB2488HSU-B3 Review
by Lim, June 27, 2017 4:20 pm

TOURNAMENT: The Iiyama G-Master GB2488HSU-B3 Red Eagle. Unknown and very good.

The Iiyama is a secret tip in a lot of different forums on the internet, at least if we talk about Full HD TN monitors with 144 Hz. So, how good is the Iiyama compared to other monitors within this tournament? Is it really so good? Yes, especially in Europe, because if its price. For around 250€ you get a solid 144 Hz monitor. You can check the video review to see what the Iiyama offers.

Updates and new information around the Iiyama GB2488HSU-B3 can be found at the bottom of the article or in the table of contents (if available). Also available within the forum (click here).


Panel type TN
Backlight EDGE LED / W-LED / Blue-Light Filter
Display size and Aaspect ratio 24 Inch
Max. resolution 1920x1080 (Full HD)
Pixel density 91,79 (pixel per inch)
Refresh rate 144 Hz nativ
Native color depth and color space 6-bit + FRC, 99% sRGB
Response time (GtG) 1 Ms
Brightness 350cd/m2
Integrated speakers 2 x 3 Watt
Video inputs 2x HDMI 1.4, 1x DP 1.2, 1x DVI-D dual link
Audio 3.5mm headphone In and Out
USB Hub Yes 2x
Power consumption < 35.3W
24" Panel dimensions WxHxD without footstand 568 x 388 x 230 mm
Frame width 19 mm
Weight 5,6 Kg
Guarantee 3 Years
Ergonomics Tilt, height, pivot, sviwel
Adaptive Sync Freesync
Free-Sync Range 35-120 Hz
Contrast (Native) 1000:1
Vesa Yes 100mm
Curved No


Alternative 144 / 165Hz Full-HD (1920x1080) TN monitors to the Iiyama G-Master GB2488HSU-B3 Red Eagle:
(All other alternatives are listed in the Gaming-Monitor-List. Future releases can be found here)


Find the Iiyama GB2488HSU-B3 here: Buy on Amazon


With Freesync:

Acer XF240H Review soon
Samsung S25HG50 Review / Buy on Amazon
ViewSonic XG2401 Review / Buy on Amazon
Asus MG248Q Review / Buy on Amazon
LG 24GM79G-B Review / Buy on Amazon


YouTube Video Review



YouTube Video Unboxing


Measuring Data
Contrast, Brightness, and Blackpoint:


Presets and Measurements:


Measurements with optimal settings (without calibration):


Measurements after calibration:

Ufo-Test Images / Text-Scrolling Test / Chase-Square Test / Eiffelturm-Test / Freesync-Overclocking

According overclocking the freesync range you need a tool called "ToastyX Custom Resolution Utility" (CRU) whichcan be downloaded here.




Review Updates
Currently no Updates.



Comparison Charts

Maximum brightness in cd/m2
Samsung S25HG50
Asus MG248Q
LG 24GM79G
Iiyama GB2488HSU-B3
Viewsonic XG2401

Maximum contrast x:1
Viewsonic XG2401
LG 24GM79G
Iiyama GB2488HSU-B3
Samsung S25HG50
Asus MG248Q

Black point with optimal settings (120 cd/m2 , 6500K)
LG 24GM79G
Viewsonic XG2401
Iiyama GB2488HSU-B3
Samsung S25HG50
Asus MG248Q



Pros & Cons



- Very good homogeneity (no clouding, and a tiny bit backlight bleed)
- Very good colors (you have to set gamma to around 2.2 within software!)
- Excellent price performance ratio
- Very good blacks for a TN panel
- Excellent overdrive settings
- USB Hub with 2 x USB 3.0
- Good build quality
- Good foot stand & cable management
- Easy OSD overview & 3 own presets
- Black Equalizer
- Flicker-Free


- A bit washed out colors (out of the box) without gamma setting changes within graphics card software or hardware calibration
- Matte panel coating (Still less matt and better compared to the Asus PG278QR for example)
- Navigation through touch buttons (not as responsive as physical buttons and a joystick)
- Freesync with a range from 35-120Hz (with CRU 59-144 Hz)
- No backlight strobing / backlight scanning feature



- Bad gamma settings out of the box + no gamma settings within the OSD (before you buy, check if you can change gamma settings)
- Minimal amount of backlight bleed on the lower right - on my unit


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1    LimTest    February 4, 2018 8:14 pm
Hallo :)
Answer from Lim's Cave - February 4, 2018 8:14 pm


2    insekt    May 6, 2018 8:55 pm
I've bought this monitor 1 month ago but i will return it tomorrow.
The problem i have is that the monitor keeps loosing signal, the screen just turns black and i can't do anything except taking the power cord out the monitor. I used DP at first, thought something was wrong with the DP connection so i tried HDMI, still the monitor kept turning black(loosing signal) now and then, it wasn't even possible to go to into the OSD.
The problem also occured when the monitor was connected to my ps4.
Answer from Lim's Cave - May 12, 2018 10:22 am

Hmm, I think this was simply bad luck and a defect which also can occur in other monitors. Hope your next unit will be flawless

3    John    April 25, 2020 10:52 am
Does this monitor support G-sync with any of GTX1xxx series graphics cards?