The LG UltraGear 45GR75DC-B offers a premium super-ultrawide screen for immersive gaming and unbeatable productivity. It’s a 45-inch DQHD display, so it’s sharper and less imposing than the more common 49-inch models. It is not exactly way behind some OLED models in price, so let’s check to see if this VA-based offering is still worth the money and effort.
LG UltraGear 45GR75DC-B Specifications
- Screen Size: 45 Inches
- Resolution: 5120 x 1440 DQHD
- Aspect Ratio: 21:9
- Panel Technology: Vertical Alignment (VA)
- Refresh Rate: 200Hz
- Response Time: 1ms MPRT
- Contrast Ratio: 3000:1 (Static)
- Brightness: 400 cd/m²
- Built-in Speakers: None
- Stand: Height – Yes
- Stand: Tilt – Yes
- Stand: Swivel – Yes
- Stand: Pivot – No
- VESA Compatibility: Yes
- Connectivity: DisplayPort 1.4 x 1, HDMI 2.1 x 2, USB-C PD 90W x 1, USB 3.0 x 3, 3.5mm Audio Jack x 1
- Dimensions (WxHxD): 42.7″ x 22″ x 12.9”
- Weight: 19.4 lbs
Design and Features
The LG UltraGear 45GR75DC-B uses the same modern yet mature aesthetic found on the more recent UltraGear monitors. The monitor has a matte black finish all over, so it doesn’t look too “gamery” like the older gaming variants from the brand. The display has a bezel-free design, but it still has inner borders like most modern displays.
It may be smaller than the more common super ultrawide, but it’s still a sizable monitor for most users. You will need a 50- or 60-inch desk to accommodate it comfortably; it will also need more than a foot of depth. It may offset some of your other peripherals, although it is not as heavy as it looks at a little under 20 lbs.
Its build quality is great and comparable with just about any premium monitor from LG or other brands. It uses a lot of plastic, but they are molded perfectly and are free from signs of weaknesses like brittleness or flexing. The stand can hold the massive screen upright, but it allows some wobbling if the screen is hit, most likely due to its size.
The LG UltraGear 45GR75DC-B has an OSD joystick for its features and settings. The gadget is located under the LG logo, so you don’t have to lean it to reach in to get to it. Other high-end monitors may include remotes, but those usually make them more expensive, so they are unnecessary.
The stand offers tilt, swivel, and height adjustments, so it’s a bit more flexible than other ultrawides. Pivoting wasn’t included, but that’s understandable since this monitor was not meant to be used as a portrait display.
Its connectivity layout includes DisplayPort 1.4 with DSC, two HDMI 2.1 ports, and a 90-watt USB-C port with DP Alt Mode. It also has a USB 3.0 hub and a 3.5mm jack with DTS Headphone:X for your peripherals. That’s the mix that we expect from a premium monitor, but it could still use a few more USB slots.
It is disappointing that the brand did not include upgraded speakers like their MaxxAudio series to this monitor. We know it deserves equally immersive headsets or desktop speakers, but it is always nice to have a good quality set with a monitor that’s this expensive.
Display and Performance
The LG UltraGear 45GR75DC-B sports a 45-inch VA panel with a 5120 x 1440 resolution, a 200Hz refresh rate, and a 1ms response time. The backlight has a 400 cd/m2 output, while the contrast is listed at 3000:1, like most VA panels. This model is HDR 600 certified, but its local dimming is still considered limited when it comes to HDR performance.
45-inch monitors are excellent for immersive gaming and productivity, but the low latency and refresh this monitor offers puts it close to E-Sports models. It’s sharper than the 49-inch models, but not to the point of making reading letters and numbers a chore. However, the massive horizontal space is very appreciable in many instances.
The LG UltraGear 45GR75DC-B covers 100% of sRGB and 94% of DCI-P3 for stunning colors in games and movies. It’s tuned from the factory, so its default accuracy’s deltaE average is only at 1.41. Most users won’t need to calibrate it right away.
Using a colorimeter improved the dE average to 0.71, making it usable for editing work and content creation. However, you will need to buy the colorimeter to achieve comparable results, and those are not cheap. We can only recommend them if you are into color-critical work, but it is completely impractical otherwise.
The LG UltraGear 45GR75DC-B’s backlight reached 466 cd/m2 in SDR, and it peaked at 589 cd/m2 when its HDR mode was active. Its contrast peaked at 3415:1 at 40% brightness, enabling it to produce deep blacks and convincing dark scenes. However, its HDR performance is marred by the fact that it only has 16 local dimming zones, which creates too much clouding and light blooming.
Its panel uniformity isn’t great, especially when the limited local dimming backlight is trying to produce HDR imagery. There is a lot of clouding across the screen, but turning this off reduced this issue to the edges of the display. There were no major backlight leaks on it, but that can vary with every unit made due to tolerances.
One of the things the LG UltraGear 45GR75DC-B is great at is motion clarity due to its extra high refresh rate. Setting the overdrive to its Fast level is all you will need to make it comparable to a Fast IPS panel. Most VA monitors are very prone to blurring in fast-paced scenes, but it is different this time around.
The LG UltraGear 45GR75DC-B is compatible with FreeSync and G-Sync for stutter-free gaming. VRR is essential for high-resolution gaming, so getting a dual-compatible monitor guarantees that you don’t lose it even if you switch to the other GPU brand. Its input lag sits 3ms at 200Hz, making it one of the fastest DQHD ultrawides in the market.
Thoughts on the LG UltraGear 45GR75DC-B
The LG UltraGear 45GR75DC-B is an excellent DQHD ultrawide based on its imaging quality and gaming performance. It’s equipped to go toe-to-toe with modern options, and it comes with an upgraded refresh rate that bests closest rivals like the Lenovo R45w-30. 200Hz is nothing to sneer at, especially if you are getting a high-resolution model like this.
However, it fails miserably when it comes to HDR performance due to the limited dimming zones. It renders the mode useless, so the premium you pay will go to waste simply because gamers will go for its better SDR mode. It’s a great monitor overall, but some if its aspects need an overhaul.
Pros:
- Excellent Colors and Contrast
- USB-C and HDMI 2.1
- Fasta and Responsive
- FreeSync and G-Sync
Cons:
- Poor HDR
- Expensive
About the Author: 
Paolo has been a gaming veteran since the golden days of Doom and Warcraft and has been building gaming systems for family, friends, and colleagues since junior high. High-performance monitors are one of his fixations; he believes that every citizen’s right to enjoy one. He has gone through several pieces of hardware in pursuit of every bit of performance gain, much to the dismay of his wallet. He now works with Monitornerds to scrutinize the latest gear to create reviews that accentuate the seldom explained aspects of a PC monitor.
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