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

ASUS ROG Swift PG27AQN Ready for NVIDIA G-SYNC ULBM 2

GFreeman

News Editor
Staff member
Joined
Mar 6, 2023
Messages
1,530 (2.43/day)
When you're shopping for a gaming display, its refresh rate is often one of the top items on your checklist. But a high refresh rate is just one ingredient in the recipe for a great gaming monitor. It's also important to consider motion clarity: is the display equipped to minimize blur?

Today, we're ready to announce that the ROG Swift 360 Hz PG27AQN, already a fast display with excellent motion clarity, is about to get even better. After installing the latest firmware, PG27AQN owners will be able to use NVIDIA Ultra Low Motion Blur 2 (ULMB) to enjoy over 1000 Hz of effective motion clarity.



Blurred lines, bad times
To understand what ULMB 2 brings to the table for gamers, it's worth taking a moment to look at why motion blur occurs in the first place. For a new frame to be displayed, a new color value has to be sent to each pixel, and each pixel takes a small but measurable amount of time to change to the new color. On a standard LCD display with an always-on backlight, you can see this entire transition. This visible transition causes motion blur.

But there's more. You also experience blur because modern displays use what's called sample -and hold to display each frame. Unlike the CRTs of old, where a frame "fades" after it's drawn, LCD displays draw the frame and hold it on screen until the next frame is drawn. That means that, even though your eyes constantly move as you track moving objects on your display, each frame is actually static, and the contrast between the persistence of each image and the movement of your eyes creates perceptual blur.

Both these types of motion blur can prevent you from playing up to your full potential in games. It's hard to react in the heat of battle when your screen gets blurry every time you try to turn, and it's even harder to keep an opponent in your sights when you can't even see them clearly.

The pros and cons of traditional backlight strobing
For gamers, backlight strobing is the answer to both these types of motion blur. Traditional backlight strobing turns off the backlight between pixel refreshes. With the backlight turned off after each frame, displays with this tech only show pixels when their color is accurate, and since each image is only shown briefly as the backlight strobes, the persistence effect from our eyes all but disappears.

The motion clarity provided by first-generation backlight strobing is undeniable — but it also comes with drawbacks. With the backlight disabled 75% of the time, the images are clear, but noticeably less bright. Additionally, backlight strobing creates varying degrees of a double-image effect. This happens because backlights generally light up all the pixels at the same time, but pixels are actually changed on a rolling scanout, not simultaneously. Finally, with traditional backlight strobing, we need to wait longer for the pixels to transition to the right place, resulting in a reduced refresh rate. Because of these drawbacks, competitive gamers often forego backlight strobing, even though it was designed with their use case in mind.

ULMB 2 offers backlight strobing without the tradeoffs
Now, that's all changing with NVIDIA ULMB 2 and panel improvements from our partners at AUO. Through a novel use of display overdrive, the G-SYNC processor is able to control the response time depending on where the vertical scan is at any given moment. This allows it to make sure that all pixels are at the right level at precisely the right time for the backlight to be flashed.

This capability of the G-SYNC processor is called Vertical Dependent Overdrive. With it, ULMB 2 delivers great image quality even at high refresh rates, where the optimal window for backlight strobing is small. When your display can refresh at up to 360 Hz, like the ROG Swift 360 Hz PG27AQN, there's not a lot of time between each refresh. Additionally, you can count on a ULMB 2 display to deliver over 250 nits of brightness with no crosstalk or double images.

Put this all together, and ULMB 2 crushes motion blur using backlight strobing, all while letting you enjoy a bright image, the full refresh rate of your monitor, and a gaming experience free of double images.

Ready to power your gaming ambitions
In a fast-paced competitive game, clarity means control. If you can more consistently keep your opponents in your crosshairs than they can keep you in theirs, you have a greater chance of emerging victorious.

That's why the ROG Swift 360 Hz PG27AQN is such a compelling pick for tournament-grade play — especially now that gamers can access ULMB 2 with a simple firmware update. Primed for supremely fluid animation with its 360 Hz refresh rate and pristine, blur-free images with ULMB 2, this display offers you outstanding clarity as you scan the battlefield.

If you're a current owner of an ROG Swift 360 Hz PG27AQN, head over to the product's support page to download the latest firmware to upgrade your experience for free. You'll find detailed instructions below for applying the update. And if you've yet to upgrade your gaming PC with the new standard for esports displays, follow the links below to purchase one of your own today.

How to update the ROG Swift 360 Hz PG27AQN for ULMB 2
For ROG Swift 360 Hz PG27AQN monitors manufactured after July of 2023, this process is unnecessary. Your monitor already has the necessary firmware. Check your on-screen display (OSD) for the option to enable ULMB 2.

If your monitor needs the firmware update, never fear: we'll walk you through the steps. The installation of this software involves transferring a series of images across a DisplayPort connection, which may appear as noise to the human eye. All told, the process should take about 5-10 minutes.

You can check out the full update process over at the ASUS ROG website.

View at TechPowerUp Main Site | Source
 
Joined
Feb 11, 2009
Messages
5,550 (0.96/day)
System Name Cyberline
Processor Intel Core i7 2600k -> 12600k
Motherboard Asus P8P67 LE Rev 3.0 -> Gigabyte Z690 Auros Elite DDR4
Cooling Tuniq Tower 120 -> Custom Watercoolingloop
Memory Corsair (4x2) 8gb 1600mhz -> Crucial (8x2) 16gb 3600mhz
Video Card(s) AMD RX480 -> RX7800XT
Storage Samsung 750 Evo 250gb SSD + WD 1tb x 2 + WD 2tb -> 2tb MVMe SSD
Display(s) Philips 32inch LPF5605H (television) -> Dell S3220DGF
Case antec 600 -> Thermaltake Tenor HTCP case
Audio Device(s) Focusrite 2i4 (USB)
Power Supply Seasonic 620watt 80+ Platinum
Mouse Elecom EX-G
Keyboard Rapoo V700
Software Windows 10 Pro 64bit
im getting so sick of those "its blurry now, but sharp with this tech" demo images that just get reused every ffing time.
 
Joined
Aug 21, 2013
Messages
1,898 (0.46/day)
That's great - until you realize you have to disable G-Sync to use ULMB and thus get tearing.
 
Joined
Apr 17, 2021
Messages
564 (0.43/day)
System Name Jedi Survivor Gaming PC
Processor AMD Ryzen 7800X3D
Motherboard Asus TUF B650M Plus Wifi
Cooling ThermalRight CPU Cooler
Memory G.Skill 32GB DDR5-5600 CL28
Video Card(s) MSI RTX 3080 10GB
Storage 2TB Samsung 990 Pro SSD
Display(s) MSI 32" 4K OLED 240hz Monitor
Case Asus Prime AP201
Power Supply FSP 1000W Platinum PSU
Mouse Logitech G403
Keyboard Asus Mechanical Keyboard
stop with the lies

no more "effective" 1000hz

stop it

we don't need more of NVidia's lies on this site

more of the "motion clarity 240" from 60hz TVs etc.
 
D

Deleted member 185088

Guest
Why not just stop wasting everyone's time with LCD, only OLED can compete with CRTs.
 
Joined
Nov 13, 2007
Messages
10,753 (1.73/day)
Location
Austin Texas
System Name stress-less
Processor 9800X3D @ 5.42GHZ
Motherboard MSI PRO B650M-A Wifi
Cooling Thermalright Phantom Spirit EVO
Memory 64GB DDR5 6400 CL30 / 2133 fclk
Video Card(s) RTX 4090 FE
Storage 2TB WD SN850, 4TB WD SN850X
Display(s) Alienware 32" 4k 240hz OLED
Case Jonsbo Z20
Audio Device(s) Yes
Power Supply Corsair SF750
Mouse DeathadderV2 X Hyperspeed
Keyboard 65% HE Keyboard
Software Windows 11
Benchmark Scores They're pretty good, nothing crazy.
Why not just stop wasting everyone's time with LCD, only OLED can compete with CRTs.
because they need a way to sell the mountains of LCD components they have laying around before that becomes a thing?

This tho. So pointless if you know OLED 240hz 4K displays are coming.
 

dgianstefani

TPU Proofreader
Staff member
Joined
Dec 29, 2017
Messages
5,029 (1.99/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 replaced with Noctua A14x25 G2
Cooling Optimus Block, HWLabs Copper 240/40 + 240/30, D5/Res, 4x Noctua A12x25, 1x A14G2, Mayhems Ultra Pure
Memory 32 GB Dominator Platinum 6150 MT 26-36-36-48, 56.6ns AIDA, 2050 FCLK, 160 ns tRFC, active cooled
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, MX900 dual gas VESA mount
Case Sliger SM570 CNC Aluminium 13-Litre, 3D printed feet, custom front, LINKUP Ultra PCIe 4.0 x16 white
Audio Device(s) Audeze Maxwell Ultraviolet w/upgrade pads & LCD headband, Galaxy Buds 3 Pro, Razer Nommo Pro
Power Supply SF750 Plat, full transparent custom cables, Sentinel Pro 1500 Online Double Conversion UPS w/Noctua
Mouse Razer Viper Pro V2 8 KHz Mercury White w/Tiger Ice Skates & Pulsar Supergrip tape
Keyboard Wooting 60HE+ module, TOFU-R CNC Alu/Brass, SS Prismcaps W+Jellykey, LekkerV2 mod, TLabs Leath/Suede
Software Windows 11 IoT Enterprise LTSC 24H2
Benchmark Scores Legendary
stop with the lies

no more "effective" 1000hz

stop it

we don't need more of NVidia's lies on this site

more of the "motion clarity 240" from 60hz TVs etc.
Maybe don't project if you haven't tried/tested it yourself.
 

Wye

Joined
Feb 15, 2023
Messages
204 (0.31/day)
Maybe don't project if you haven't tried/tested it yourself.
From a ULMB user: ULMB 360 is ULMB 360, not "effective 1000".
Yes, black frame insertion can make you perceive fast movement more clearly.

But there are also several cons:
Activating ULMB severely reduces brightness.
The flicker is noticeable.
You are tricking your eye. The blur is natural(it is created by the brain) and it protects your eyes/brain. You are not supposed to see perfectly clear stuff moving at extremely high speed while you are standing still. Your eye tracking will go berserk, putting a strain on the extra ocular muscles.
The cerebellum will constantly think you are moving and try to adjust your equilibrium. But since you are not actually moving, you are becoming dizzy after a while.

It's a lie that produces some (questionable) results, but it is still a lie.

Common scenario for ULMB customers:
  1. Buy a ULMB monitor
  2. Enable ULMB
  3. Fire up blurbusters.com
  4. Awe at the amazing clarity, boast it to your family & friends
  5. Your eyes hurt and you feel dizzy
  6. Turn off ULMB
  7. Never use ULMB ever again
And yeah, like others already mentioned, it is a waste of time to implement BFI on a LCD in 2023. OLED is orders of magnitude superior in this regard.
 
Last edited:

Cheeseball

Not a Potato
Supporter
Joined
Jan 2, 2009
Messages
1,995 (0.34/day)
Location
Pittsburgh, PA
System Name Titan
Processor AMD Ryzen™ 7 7950X3D
Motherboard ASRock X870 Taichi Lite
Cooling Thermalright Phantom Spirit 120 EVO CPU
Memory TEAMGROUP T-Force Delta RGB 2x16GB DDR5-6000 CL30
Video Card(s) ASRock Radeon RX 7900 XTX 24 GB GDDR6 (MBA) / NVIDIA RTX 4090 Founder's Edition
Storage Crucial T500 2TB x 3
Display(s) LG 32GS95UE-B, ASUS ROG Swift OLED (PG27AQDP), LG C4 42" (OLED42C4PUA)
Case HYTE Hakos Baelz Y60
Audio Device(s) Kanto Audio YU2 and SUB8 Desktop Speakers and Subwoofer, Cloud Alpha Wireless
Power Supply Corsair SF1000L
Mouse Logitech Pro Superlight 2 (White), G303 Shroud Edition
Keyboard Wooting 60HE+ / 8BitDo Retro Mechanical Keyboard (N Edition) / NuPhy Air75 v2
VR HMD Occulus Quest 2 128GB
Software Windows 11 Pro 64-bit 23H2 Build 22631.4317
Your eyes hurt and you feel dizzy

I am a XL2546 user for almost 3 years now and I don't get any dizziness or such, especially after a 3 hour session of Overwatch or Apex Legends. DyAc+ does help for tracking targets in fast paced FPS games.

So even if it is considered a "lie", it is a very useful and effective lie.
 
Joined
Jan 6, 2013
Messages
81 (0.02/day)
From a ULMB user: ULMB 360 is ULMB 360, not "effective 1000".
Yes, black frame insertion can make you perceive fast movement more clearly.

But there are also several cons:
Activating ULMB severely reduces brightness.
The flicker is noticeable.
You are tricking your eye. The blur is natural(it is created by the brain) and it protects your eyes/brain. You are not supposed to see perfectly clear stuff moving at extremely high speed while you are standing still. Your eye tracking will go berserk, putting a strain on the extra ocular muscles.
The cerebellum will constantly think you are moving and try to adjust your equilibrium. But since you are not actually moving, you are becoming dizzy after a while.

It's a lie that produces some (questionable) results, but it is still a lie.

Common scenario for ULMB customers:
  1. Buy a ULMB monitor
  2. Enable ULMB
  3. Fire up blurbusters.com
  4. Awe at the amazing clarity, boast it to your family & friends
  5. Your eyes hurt and you feel dizzy
  6. Turn off ULMB
  7. Never use ULMB ever again
And yeah, like others already mentioned, it is a waste of time to implement BFI on a LCD in 2023. OLED is orders of magnitude superior in this regard.
You must have defective eyes.
Ulmb2 is looking great on my pg27aqn. No flickering and good brightness.
 
Joined
Apr 17, 2021
Messages
564 (0.43/day)
System Name Jedi Survivor Gaming PC
Processor AMD Ryzen 7800X3D
Motherboard Asus TUF B650M Plus Wifi
Cooling ThermalRight CPU Cooler
Memory G.Skill 32GB DDR5-5600 CL28
Video Card(s) MSI RTX 3080 10GB
Storage 2TB Samsung 990 Pro SSD
Display(s) MSI 32" 4K OLED 240hz Monitor
Case Asus Prime AP201
Power Supply FSP 1000W Platinum PSU
Mouse Logitech G403
Keyboard Asus Mechanical Keyboard
Maybe don't project if you haven't tried/tested it yourself.
right... because you've used a native 1000hz monitor to compare it to

simping for nvidia on this level, I've not seen it before LMAO
 

Cheeseball

Not a Potato
Supporter
Joined
Jan 2, 2009
Messages
1,995 (0.34/day)
Location
Pittsburgh, PA
System Name Titan
Processor AMD Ryzen™ 7 7950X3D
Motherboard ASRock X870 Taichi Lite
Cooling Thermalright Phantom Spirit 120 EVO CPU
Memory TEAMGROUP T-Force Delta RGB 2x16GB DDR5-6000 CL30
Video Card(s) ASRock Radeon RX 7900 XTX 24 GB GDDR6 (MBA) / NVIDIA RTX 4090 Founder's Edition
Storage Crucial T500 2TB x 3
Display(s) LG 32GS95UE-B, ASUS ROG Swift OLED (PG27AQDP), LG C4 42" (OLED42C4PUA)
Case HYTE Hakos Baelz Y60
Audio Device(s) Kanto Audio YU2 and SUB8 Desktop Speakers and Subwoofer, Cloud Alpha Wireless
Power Supply Corsair SF1000L
Mouse Logitech Pro Superlight 2 (White), G303 Shroud Edition
Keyboard Wooting 60HE+ / 8BitDo Retro Mechanical Keyboard (N Edition) / NuPhy Air75 v2
VR HMD Occulus Quest 2 128GB
Software Windows 11 Pro 64-bit 23H2 Build 22631.4317
right... because you've used a native 1000hz monitor to compare it to

simping for nvidia on this level, I've not seen it before LMAO
While ULMB is NVIDIA’s (and ASUS’s ELMB) take on backlight strobing, this is hardly “simping” for them. We need a proper DyAc+ competitor that isn’t on a TN panel.

Watch the video and you’ll understand that its not supposed to be “1000Hz native refresh rate”, but that it actively controls the backlight so that fast moving images seem clearer, which is important in competitive gameplay.
 

dgianstefani

TPU Proofreader
Staff member
Joined
Dec 29, 2017
Messages
5,029 (1.99/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 replaced with Noctua A14x25 G2
Cooling Optimus Block, HWLabs Copper 240/40 + 240/30, D5/Res, 4x Noctua A12x25, 1x A14G2, Mayhems Ultra Pure
Memory 32 GB Dominator Platinum 6150 MT 26-36-36-48, 56.6ns AIDA, 2050 FCLK, 160 ns tRFC, active cooled
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, MX900 dual gas VESA mount
Case Sliger SM570 CNC Aluminium 13-Litre, 3D printed feet, custom front, LINKUP Ultra PCIe 4.0 x16 white
Audio Device(s) Audeze Maxwell Ultraviolet w/upgrade pads & LCD headband, Galaxy Buds 3 Pro, Razer Nommo Pro
Power Supply SF750 Plat, full transparent custom cables, Sentinel Pro 1500 Online Double Conversion UPS w/Noctua
Mouse Razer Viper Pro V2 8 KHz Mercury White w/Tiger Ice Skates & Pulsar Supergrip tape
Keyboard Wooting 60HE+ module, TOFU-R CNC Alu/Brass, SS Prismcaps W+Jellykey, LekkerV2 mod, TLabs Leath/Suede
Software Windows 11 IoT Enterprise LTSC 24H2
Benchmark Scores Legendary
While ULMB is NVIDIA’s (and ASUS’s ELMB) take on backlight strobing, this is hardly “simping” for them. We need a proper DyAc+ competitor that isn’t on a TN panel.

Watch the video and you’ll understand that its not supposed to be “1000Hz native refresh rate”, but that it actively controls the backlight so that fast moving images seem clearer, which is important in competitive gameplay.
Yep. As usual, high quality advances are scoffed at because they come from NVIDIA, and it's cool to do so.

This tech is easily the best version so far, and the fact its patchable into existing monitors is even better for the consumer.
 
Top