• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

AOC U28G2XU2

Inle

Staff member
Joined
Apr 6, 2017
Messages
319 (0.12/day)
System Name Efrafa
Processor Intel Core i7-5960X @ 4,3 GHz
Motherboard Asus X99 STRIX Gaming
Cooling NZXT Kraken X52
Memory G.Skill Ripjaws 4 32 GB
Video Card(s) Asus ROG STRIX GeForce GTX 1080 OC Edition
Storage ADATA SX8000 NVMe 512 GB + 5x Kingston HyperX Savage 512 GB
Display(s) Acer Predator XB271HU
Case Corsair Crystal 460X
Audio Device(s) Audiolab M-DAC
Power Supply Seasonic X-850
Mouse Logitech G900 Chaos Spectrum
Keyboard Cherry MX Board 6.0
Software Battlefield 1
The AOC U28G2XU2 offers a 28-inch 4K 144 Hz IPS panel and costs less than its direct competitors. If you're in the market for a 4K gaming monitor but don't want to go larger than 28 inches, find out what you can expect from the most affordable option.

Show full review
 
Joined
Nov 27, 2023
Messages
1,085 (6.91/day)
System Name The Workhorse
Processor AMD Ryzen R9 5900X
Motherboard Gigabyte Aorus B550 Pro
Cooling CPU - Noctua NH-D15S Case - 3 Noctua NF-A14 PWM at the bottom, 2 Fractal Design 180mm at the front
Memory GSkill Trident Z 3200CL14
Video Card(s) NVidia GTX 1070 MSI QuickSilver
Storage Adata SX8200Pro
Display(s) LG 32GK850G
Case Fractal Design Torrent
Audio Device(s) FiiO E-10K DAC/Amp, Samson Meteorite USB Microphone
Power Supply Corsair RMx850 (2018)
Mouse Razer Viper (Original)
Keyboard Cooler Master QuickFire Rapid TKL keyboard (Cherry MX Black)
Software Windows 11 Pro (23H2)
I will be honest, I wanted to ask this under a previous display review, but forgot - what is the rationale for using 250 cd as the brightness target? This seems unusually high and most other monitor reviews I have read tend to stick to the 120-150 range usually. Sure, I get the “normal uncontrolled environment” logic here, but it seems to me that even under such conditions 250 would be incredibly bright, to the point of causing eyestrain. I know brightness is subjective and depends on ambient light, but still.
This isn’t a criticism, by the way, the review is excellent, just wanted to know the reasoning.
 
Joined
Dec 26, 2006
Messages
3,544 (0.56/day)
Location
Northern Ontario Canada
Processor Ryzen 5700x
Motherboard Gigabyte X570S Aero G R1.1 BiosF5g
Cooling Noctua NH-C12P SE14 w/ NF-A15 HS-PWM Fan 1500rpm
Memory Micron DDR4-3200 2x32GB D.S. D.R. (CT2K32G4DFD832A)
Video Card(s) AMD RX 6800 - Asus Tuf
Storage Kingston KC3000 1TB & 2TB & 4TB Corsair LPX
Display(s) LG 27UL550-W (27" 4k)
Case Be Quiet Pure Base 600 (no window)
Audio Device(s) Realtek ALC1220-VB
Power Supply SuperFlower Leadex V Gold Pro 850W ATX Ver2.52
Mouse Mionix Naos Pro
Keyboard Corsair Strafe with browns
Software W10 22H2 Pro x64
I got this monitor for $300 CAD

That's quite the premium for 144Hz!!!
 
Joined
Oct 2, 2015
Messages
2,995 (0.96/day)
Location
Argentina
System Name Ciel
Processor AMD Ryzen R5 5600X
Motherboard Asus Tuf Gaming B550 Plus
Cooling ID-Cooling 224-XT Basic
Memory 2x 16GB Kingston Fury 3600MHz@3933MHz
Video Card(s) Gainward Ghost 3060 Ti 8GB + Sapphire Pulse RX 6600 8GB
Storage NVMe Kingston KC3000 2TB + NVMe Toshiba KBG40ZNT256G + HDD WD 4TB
Display(s) AOC Q27G3XMN + Samsung S22F350
Case Cougar MX410 Mesh-G
Audio Device(s) Kingston HyperX Cloud Stinger Core 7.1 Wireless PC
Power Supply Aerocool KCAS-500W
Mouse EVGA X15
Keyboard VSG Alnilam
Software Windows 11
As an owner of an AOC Q27G3XMN, please review it. It's the underdog of displays.
 
Joined
Feb 6, 2020
Messages
188 (0.12/day)
Location
O-Town, USA
System Name Regular PC | Server HP Z440
Processor 9700k | E5-2698v3
Motherboard Gigabyte Z390 Gaming X-CF | Stock mobo
Cooling Scythe Mugen 5 rev. B | Stock HS
Memory 32 GB (8x4) | 112 GB (8x2 + 16x6)
Video Card(s) RTX 2070 Super | K4000
Storage 970 EVO+ 1TB | 860 1TB x2
Display(s) XV340CK x2, 1080p x2
Power Supply Corsair RM750x | Stock
Software Windows | Proxmox 7
I will be honest, I wanted to ask this under a previous display review, but forgot - what is the rationale for using 250 cd as the brightness target? This seems unusually high and most other monitor reviews I have read tend to stick to the 120-150 range usually. Sure, I get the “normal uncontrolled environment” logic here, but it seems to me that even under such conditions 250 would be incredibly bright, to the point of causing eyestrain.
I have a cheap Acer that has a 250 max, which I would consider the lowest acceptable brightness. HDR needs 1000 and HDR400 is a much lower quality HDR that needs 400.
 
Joined
Oct 8, 2022
Messages
260 (0.45/day)
Processor Ryzen 5 7600X
Motherboard Asus Proart B650
Cooling Noctua U12S
Memory Corsair Vengeance DDR5 32GB (2x16GB) 5600MHz C36 AMD Expo
Video Card(s) Sapphire RX 7800 XT Nitro+
Storage Samsung 990 Pro 1Tb
Case Fractal Design Pop Silent
Audio Device(s) Edifier r1900tII
Power Supply Seasonic Prime Platinum 650W
IPS? In 2024?
Just stop being poor!
 
Joined
Feb 27, 2024
Messages
35 (0.53/day)
Processor Ryzen 7800X3D
Motherboard MSI X670E Tomahawk
Cooling Thermalright Peerless Assassin 120
Memory 32GB (6000/30)
Video Card(s) 4070 Ti @ 3+ GHz
Storage Samsung 990 Pro 4TB
Display(s) Dell 1440p 360 Hz QD-OLED
I don't understand why they slam those red accent colors on it, will stop many people from buying it.

sRGB locks brightness is a bummer.
 
Joined
Sep 27, 2008
Messages
1,033 (0.18/day)
I don't understand why they slam those red accent colors on it, will stop many people from buying it.
I doubt its as much of detractor as you think. Most of LG's Ultragear lineup has similar red accents, and they are still pretty popular.
 
Joined
Feb 27, 2024
Messages
35 (0.53/day)
Processor Ryzen 7800X3D
Motherboard MSI X670E Tomahawk
Cooling Thermalright Peerless Assassin 120
Memory 32GB (6000/30)
Video Card(s) 4070 Ti @ 3+ GHz
Storage Samsung 990 Pro 4TB
Display(s) Dell 1440p 360 Hz QD-OLED
I doubt its as much of detractor as you think. Most of LG's Ultragear lineup has similar red accents, and they are still pretty popular.
Would be even more popular if they made them all black.

Most LGs higher end stuff don't have red on it. Their OLEDs for example.
 
Joined
Feb 23, 2019
Messages
5,644 (2.98/day)
Location
Poland
Processor Ryzen 7 5800X3D
Motherboard Gigabyte X570 Aorus Elite
Cooling Thermalright Phantom Spirit 120 SE
Memory 2x16 GB Crucial Ballistix 3600 CL16 Rev E @ 3800 CL16
Video Card(s) RTX3080 Ti FE
Storage SX8200 Pro 1 TB, Plextor M6Pro 256 GB, WD Blue 2TB
Display(s) LG 34GN850P-B
Case SilverStone Primera PM01 RGB
Audio Device(s) SoundBlaster G6 | Fidelio X2 | Sennheiser 6XX
Power Supply SeaSonic Focus Plus Gold 750W
Mouse Endgame Gear XM1R
Keyboard Wooting Two HE
Joined
Feb 27, 2024
Messages
35 (0.53/day)
Processor Ryzen 7800X3D
Motherboard MSI X670E Tomahawk
Cooling Thermalright Peerless Assassin 120
Memory 32GB (6000/30)
Video Card(s) 4070 Ti @ 3+ GHz
Storage Samsung 990 Pro 4TB
Display(s) Dell 1440p 360 Hz QD-OLED
And jump into the burn in bandwagon?
I will take a very small chance of burn in than living with terrible LCD image quality and issues from day one. I got rid of my last LCD panel recently and I will never be going back. Phone, laptop, TV all had OLED for years and years. Now main monitor has been replaced too.

OLED motion clarity alone is next level compared to LCD smearing hell. Zero blooming, terrible contrast ratio and corner glow (IPS/VA). Dark room gaming with OLED is immersive on a whole new level.

Besides, burn-in has not been a big problem on OLED for years, this is 2024 not 2014.

Had 15-20 phones with OLED in the last 15 years and 5 OLED TVs, zero burn-in on any of those devices. Every high-end product goes OLED for a reason. LCD is for entry to mid-end stuff.
 

Inle

Staff member
Joined
Apr 6, 2017
Messages
319 (0.12/day)
System Name Efrafa
Processor Intel Core i7-5960X @ 4,3 GHz
Motherboard Asus X99 STRIX Gaming
Cooling NZXT Kraken X52
Memory G.Skill Ripjaws 4 32 GB
Video Card(s) Asus ROG STRIX GeForce GTX 1080 OC Edition
Storage ADATA SX8000 NVMe 512 GB + 5x Kingston HyperX Savage 512 GB
Display(s) Acer Predator XB271HU
Case Corsair Crystal 460X
Audio Device(s) Audiolab M-DAC
Power Supply Seasonic X-850
Mouse Logitech G900 Chaos Spectrum
Keyboard Cherry MX Board 6.0
Software Battlefield 1
I will be honest, I wanted to ask this under a previous display review, but forgot - what is the rationale for using 250 cd as the brightness target? This seems unusually high and most other monitor reviews I have read tend to stick to the 120-150 range usually. Sure, I get the “normal uncontrolled environment” logic here, but it seems to me that even under such conditions 250 would be incredibly bright, to the point of causing eyestrain. I know brightness is subjective and depends on ambient light, but still.
This isn’t a criticism, by the way, the review is excellent, just wanted to know the reasoning.

There's no deeper reasoning than what you already mentioned. I've calibrated hundreds of monitors for people at their homes and noticed a trend: most of them intuitively set the brightness to around 250 cd/m2. They never know the actual panel brightness, but that's what they end up on "by feel". If I were testing professional monitors and calibrating them for screen-to-print matching, then I'd stick with the industry-standard luminance range of 80-120 cd/m2 (most commonly 100 cd/m2). For home monitors, it makes more sense to me to examine them with the settings that are likely to be used in real life. 99% of users would consider a 100 or 120 cd/m2 luminance screen far too dim, to a point where it's basically useless.

Fortifying my stance is the fact that OLED monitor makers currently strive to hit the 250 cd/m2 mark with ABL turned off (so, constant screen brightness). Anything past 200 cd/m2 is proving to be good enough for combined daytime and nighttime usage, but 250 cd/m2 really is somewhat of a sweet spot.

Thank you for your kind words, happy to hear you like the review!
 
Last edited:
Joined
Sep 13, 2013
Messages
92 (0.02/day)
Processor intel 12700k
Motherboard asus
Cooling noctua d15s
Memory 64gb
Video Card(s) 4090
Storage 4tb m.2
Display(s) 27" 1440p 240hz oled
Case fractal define s
Audio Device(s) minidsp shd studio and hifi speakers
Software windows 11
so much nonsense on monitors now, all we need is one displayport. but instead we have so much shit going on. you have one gpu, and and a monitor or two, displayport cable and you are done.
to much stuff ads cost, points of failure, delay in operation and more.
 
Joined
Feb 20, 2019
Messages
7,338 (3.87/day)
System Name Bragging Rights
Processor Atom Z3735F 1.33GHz
Motherboard It has no markings but it's green
Cooling No, it's a 2.2W processor
Memory 2GB DDR3L-1333
Video Card(s) Gen7 Intel HD (4EU @ 311MHz)
Storage 32GB eMMC and 128GB Sandisk Extreme U3
Display(s) 10" IPS 1280x800 60Hz
Case Veddha T2
Audio Device(s) Apparently, yes
Power Supply Samsung 18W 5V fast-charger
Mouse MX Anywhere 2
Keyboard Logitech MX Keys (not Cherry MX at all)
VR HMD Samsung Oddyssey, not that I'd plug it into this though....
Software W10 21H1, barely
Benchmark Scores I once clocked a Celeron-300A to 564MHz on an Abit BE6 and it scored over 9000.
The panel seems okay in terms of refresh and image quality. I'd probably pick "weak" overdrive but I suspect it does depend a bit on whether you can reliably exceed 144fps at 4K as these budget displays don't have variable overdrive for VRR modes at changing framerates.

The OSD is a head-scratcher. Even generic office monitors make that under-bezel button collection less of a headache by simply using the display to label them with an OSD and have them be context sensitive.

IPS? In 2024?
Just stop being poor!
"I can afford the 4090 that's good for 2-3 years needed to get 100fps+ at 4K but I don't want to spend much on the display that will last for my next three graphics cards"
 
Joined
Sep 15, 2015
Messages
1,030 (0.33/day)
Location
Latvija
System Name Fujitsu Siemens, HP Workstation
Processor Athlon x2 5000+ 3.1GHz, i5 2400
Motherboard Asus
Memory 4GB Samsung
Video Card(s) rx 460 4gb
Storage 750 Evo 250 +2tb
Display(s) Asus 1680x1050 4K HDR
Audio Device(s) Pioneer
Power Supply 430W
Mouse Acme
Keyboard Trust
Where is 2K TV?
 

dgianstefani

TPU Proofreader
Staff member
Joined
Dec 29, 2017
Messages
4,330 (1.87/day)
Location
Swansea, Wales
System Name Silent
Processor Ryzen 7800X3D @ 5.15ghz BCLK OC, TG AM5 High Performance Heatspreader
Motherboard ASUS ROG Strix X670E-I, chipset fans removed
Cooling Optimus AMD Raw Copper/Plexi, HWLABS Copper 240/40+240/30, D5, 4x Noctua A12x25, Mayhems Ultra Pure
Memory 32 GB Dominator Platinum 6150 MHz 26-36-36-48, 56.6ns AIDA, 2050 FLCK, 160 ns TRFC
Video Card(s) RTX 3080 Ti Founders Edition, Conductonaut Extreme, 18 W/mK MinusPad Extreme, Corsair XG7 Waterblock
Storage Intel Optane DC P1600X 118 GB, Samsung 990 Pro 2 TB
Display(s) 32" 240 Hz 1440p Samsung G7, 31.5" 165 Hz 1440p LG NanoIPS Ultragear
Case Sliger SM570 CNC Aluminium 13-Litre, 3D printed feet, custom front panel with pump/res combo
Audio Device(s) Audeze Maxwell Ultraviolet, Razer Nommo Pro
Power Supply SF750 Plat, transparent full custom cables, Sentinel Pro 1500 Online Double Conversion UPS w/Noctua
Mouse Razer Viper Pro V2 Mercury White w/Tiger Ice Skates & Pulsar Supergrip tape
Keyboard Wooting 60HE+ module, TOFU Redux Burgundy w/brass weight, Prismcaps White & Jellykey, lubed/modded
Software Windows 10 IoT Enterprise LTSC 19053.3803
Benchmark Scores Legendary
I doubt its as much of detractor as you think. Most of LG's Ultragear lineup has similar red accents, and they are still pretty popular.
I have an Ultragear as my secondary, the red accents are virtually invisible when the monitor is turned on, in normal room lighting.
 
Joined
Jan 24, 2023
Messages
65 (0.14/day)
As mentioned in the review, I can't stress enough how horrible the OSD is. From all monitors I've tried in my life (20+), the AOC OSD is the worst by far and I'll never buy an AOC monitor ever again on this reason alone (the quality of the monitor itself was pretty good, but the OSD is a dealbreaker). Can't believe they haven't changed it after all these years (got an AOC 24'' 1080p years ago and to this day, it remains a pain in the side). Extremely counter intuitive placement of buttons and unnecessary amount of buttons you have to press to do something as simple as switch between saved preset settings (or even save more than 2 customized presets).

Buyer beware.
 
Joined
Nov 27, 2023
Messages
1,085 (6.91/day)
System Name The Workhorse
Processor AMD Ryzen R9 5900X
Motherboard Gigabyte Aorus B550 Pro
Cooling CPU - Noctua NH-D15S Case - 3 Noctua NF-A14 PWM at the bottom, 2 Fractal Design 180mm at the front
Memory GSkill Trident Z 3200CL14
Video Card(s) NVidia GTX 1070 MSI QuickSilver
Storage Adata SX8200Pro
Display(s) LG 32GK850G
Case Fractal Design Torrent
Audio Device(s) FiiO E-10K DAC/Amp, Samson Meteorite USB Microphone
Power Supply Corsair RMx850 (2018)
Mouse Razer Viper (Original)
Keyboard Cooler Master QuickFire Rapid TKL keyboard (Cherry MX Black)
Software Windows 11 Pro (23H2)
I have an Ultragear as my secondary, the red accents are virtually invisible when the monitor is turned on, in normal room lighting.
Same. No issues with accents. I did turn off the silly RGB ring on the backside though. I guess LG maybe thinks it can serve as some sort of bias light, but… ehhh, not really. Looks more goofy and distracting. I tested it once when I got the monitor and instantly went “that ain’t it, chief”.
 
Joined
Jun 11, 2019
Messages
483 (0.27/day)
Location
Moscow, Russia
Processor Intel 12600K
Motherboard Gigabyte Z690 Gaming X
Cooling CPU: Noctua NH-D15S; Case: 2xNoctua NF-A14, 1xNF-S12A.
Memory Ballistix Sport LT DDR4 @3600CL16 2*16GB
Video Card(s) Palit RTX 4080
Storage Samsung 970 Pro 512GB + Crucial MX500 500gb + WD Red 6TB
Display(s) Dell S2721qs
Case Phanteks P300A Mesh
Audio Device(s) Behringer UMC204HD
Power Supply Fractal Design Ion+ 560W
Mouse Glorious Model D-
Whenever I'm gonna be in the market for a HRR-monitor, I'm gonna be that guy who doesn't want to go above 28" if the resolution stays at 4K — because I don't want to lose the PPI. The crispness of 4K on a 27" screen is amazing and I ain't ever going back. If it's 32" (or bigger) then it needs to be 6K (or above, respectively).
 
Joined
Feb 20, 2019
Messages
7,338 (3.87/day)
System Name Bragging Rights
Processor Atom Z3735F 1.33GHz
Motherboard It has no markings but it's green
Cooling No, it's a 2.2W processor
Memory 2GB DDR3L-1333
Video Card(s) Gen7 Intel HD (4EU @ 311MHz)
Storage 32GB eMMC and 128GB Sandisk Extreme U3
Display(s) 10" IPS 1280x800 60Hz
Case Veddha T2
Audio Device(s) Apparently, yes
Power Supply Samsung 18W 5V fast-charger
Mouse MX Anywhere 2
Keyboard Logitech MX Keys (not Cherry MX at all)
VR HMD Samsung Oddyssey, not that I'd plug it into this though....
Software W10 21H1, barely
Benchmark Scores I once clocked a Celeron-300A to 564MHz on an Abit BE6 and it scored over 9000.
Where is 2K TV?
2K = 1080p, based on the loose definition of "a display with approximately 2000 horizontal pixels" but the true 2K resolution is 2048x1080 and it's not a standard resolution or aspect ratio for PCs or TVs.

If you mean 2560x1440, that's normally called 1440p, though I've heard some people call it 2.5K before - and TV's don't use this resolution because it's not an integer multiple of the "Full HD" 1080p resolution.
 

RUSerious

New Member
Joined
Feb 26, 2024
Messages
24 (0.36/day)
Whenever I'm gonna be in the market for a HRR-monitor, I'm gonna be that guy who doesn't want to go above 28" if the resolution stays at 4K — because I don't want to lose the PPI. The crispness of 4K on a 27" screen is amazing and I ain't ever going back. If it's 32" (or bigger) then it needs to be 6K (or above, respectively).
My glasses would need glasses with a 27/28" 4K monitor.
 
Joined
Jun 11, 2019
Messages
483 (0.27/day)
Location
Moscow, Russia
Processor Intel 12600K
Motherboard Gigabyte Z690 Gaming X
Cooling CPU: Noctua NH-D15S; Case: 2xNoctua NF-A14, 1xNF-S12A.
Memory Ballistix Sport LT DDR4 @3600CL16 2*16GB
Video Card(s) Palit RTX 4080
Storage Samsung 970 Pro 512GB + Crucial MX500 500gb + WD Red 6TB
Display(s) Dell S2721qs
Case Phanteks P300A Mesh
Audio Device(s) Behringer UMC204HD
Power Supply Fractal Design Ion+ 560W
Mouse Glorious Model D-
My glasses would need glasses with a 27/28" 4K monitor.
Without scaling yeah, back when 27-4K displays appeared used to be a huge problem. But scaling works well on Win11 now, it's been almost a decade haha. There are still some apps that need work but it's mostly smooth sailing on 200% for me. Even VSTs (music production stuff) scale well on high-res displays to whatever size you wish.
 
Top