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UltraSharp 40 Curved Thunderbolt™ Hub Monitor U4025QW

Dell - UltraSharp 40 Curved Thunderbolt™ Hub Monitor U4025QW

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Based on 1 year's data from Jan 25, 2026 How it works

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r/ultrawidemasterraceon the fence of buying a LG Ultragear 45GX950A-B. Should I wait for the 240hz bendable or wait for the 39inch one
4 months ago

I have my 800r for gaming on the same desk as my 2500r. Have never wanted to bend either. If anything, I'd want a bigger curve on the 2500r Dell 😅

r/ultrawidemasterraceMy terse review of the LG 45GX950A-B (5K2K)
3 months ago

Thank you for the comment on the curve. I swear to god half the forum won't shut up about it. When actually using it, I don't even think about it. It sits next to my 2500r Dell I don't even notice switching back and forth really.

r/ultrawidemasterraceUltrawide Monitor for office work
4 months ago

Dell U4025QW is the king for office work IMO.

r/ultrawidemasterraceUltrawide Monitor for office work
4 months ago

Dell is better. 120hz refresh rate to start. Just Google it.

r/ultrawidemasterraceMultiple monitor upgrade to a wide setup (info in comment)
4 months ago

Dell U4025QW + small vertical monitor on the side.

r/ultrawidemasterraceMultiple monitor upgrade to a wide setup (info in comment)
4 months ago

It's the king of office work with all the connectivity. 5k2k panel. 120hz. IPS Black. Slight curve.

r/ultrawidemasterraceLet's talk about IPS productivity + 120hz+ monitors
3 months ago

I run that for gaming and the Dell for work. I don't wanna mess with OLED for my all day work monitor.

r/ultrawidemasterrace45" in 3440x1400 vs 5k2k?
4 months ago

The absolute drama and overreacting in the comments is hilarious. For gaming, the 45" 1440p is excellent. That's what this thing is made for. For text clarity or working, it's absolutely not good. OP - go for the 5k2k, or a Dell U4025QW if you're mostly working.

r/ultrawidemasterraceThe nightmare that is finding an IPS in 2025 vs VA and OLED.
2 months ago

Are you truly limited to 34"? If not, grab a Dell U4025QW and call it a day.

Reddit IconNoJesusOnlyZuul 0.8
r/ultrawidemasterrace5k2k 40" vs 5k 1440p 49" for productivity - resolution vs physical dimensions
3 months ago

Ive used both, have also had the LG 45 5K2K and Samsung 57. Currently have the Samsung 40 5k2k. The LG text issue makes it pretty awful for productivity. The vertical space is essential, so Id recommend the Samsung 40, plus I believe it's on sale

Reddit Iconacrophile 0.5
r/ultrawidemasterraceUltraWide for Programming on a Mac and gaming on a PC?
9 months ago

I second this monitor. I've had many similar Dell monitors over the years, from the 38" 1600p ones to these 40" 5k2k ones. I have 2 of these 4025's, one on top of the other and when I'm gaming on PC, I switch the Mac to mirror the screens and I change the input of the bottom monitor to the PC. I keep an eye on my mac on the top screen and either use separate kb/mouse or sometimes I use Synergy although I find it to be a bit buggy. I don't find the response time to be an issue but I also don't play a lot of twitchy fps games. 🤷‍♂️ Currently playing TLOU2 and it's gorgeous on this display.

r/ultrawidemasterraceBest productivity (70%)/gaming (30%) monitor at the moment 38-40"?
9 months ago

I have two 4025's one on top of the other... both on my macbook during the day, and I switch over the bottom one to pc for gaming. Playing TLOU2 on it right now and it's gorgeous. I don't really notice any smearing, or if I do it feels like just slight motion blur that most games push on you anyway. 😀

Reddit IconAfter-Helicopter3981 0.5
r/ultrawidemasterraceBest productivity (70%)/gaming (30%) monitor at the moment 38-40"?
9 months ago

I’m the same scenario right now. My final two options are the Dell U4025QW or the LG 5k2k Oled. How is the text clarity on the LG oled? That’s my once concern along with the lack of kvm

r/ultrawidemasterraceBest productivity (70%)/gaming (30%) monitor at the moment 38-40"?
9 months ago

Yes I saw this along with their new video today. Might be better to stick with the dell. But the OLED seems so nice

r/ultrawidemasterraceBest productivity (70%)/gaming (30%) monitor at the moment 38-40"?
9 months ago

Yes, also Monitors Unboxed posted new video on the LG 5k2k today. They were saying that the curve is very noticeable and the fact that it is is OLED just isn't made for productivity. I do lots of video editing and I would be worried that the timeline could burn in. As much as I want that OLED panel, the more sensible choice may be the Dell

Reddit IconAlwaysSnowy 0.5
r/ultrawidemasterrace21:09 Dell vs LG - what monitor to pick?
11 months ago

Honestly, going back and forth from 4K on my Dell U32 32" Ultrasharp to 3840 x1600 on my 38" Alienware can be quite the difference, particularly in text clarity. When I only had the Alienware and it was an appropriate distance away, it wasn't noticeable, but as soon as I got the 32" Ultrasharp to play with, the text immediately appears more soothing to the eyes and going in the other direction is fairly jarring. Of course the 144Hz refresh rate of the Alienware makes the experience much smoother. And I absolutely notice the difference in brightness/nits during the day - the Alienware is much brighter. In short, if it were 4K, I think it'd be the perfect monitor and that's sort of what you get with the U4025, with the added benefit of the dock. I would choose brightness, refresh, and customer service of the Dell over the LG any day of the week. Particularly with regards to the latter, Dell has an outstanding premium panel exchange warranty whereas customer service with LG seems to be rather suboptimal. Only thing I'd caution is considering whether a curved screen will be appropriate for your CAD work case. From time to time, I do notice when working in Excel or other docs on my Alienware that the lines I'm drawing or looking at aren't 'straight' and it can be ever so slightly annoying. It's actually why I decided to experiment with the 32" Ultrasharp. Your eyes eventually adjust and trick your brain into thinking that the curved line you see on the Ultrawide is indeed straight(ish), and then when you look at a flat screen, the flat screen will look convex. I would imagine that this would be far more annoying in CAD visuals, but I don't spend a ton of time on graphics so not sure. If the cost of the Dell is tough to swallow, you could always consider getting 2x32" 4K displays. Could be cheaper with even more real estate and same vertical resolution. Just don't forget to factor in the theoretical cost of the dock in the comparison. Good standalone Thunderbolt docks aren't cheap.

Reddit IconAmxTL 0.5
r/ultrawidemasterrace[Real-User Invite] LG UltraGear 5K2K GX9: The Ultimate Sweet Spot of UltraWide OLED Gaming Monitor
9 months ago

I love my Dell u4025qw, but partly because of the KVM switch that responds to DDC. Of course, it's only 40 inches and not OLED, so in a few years I'll be looking for a replacement. If the LG 5K2K offerings had KVM, I would be interested.

Reddit IconArthurDent4200 0.5
r/ultrawidemasterraceBest size ultra-wide monitor for a 48” x 30” desk (Work and gaming)?
11 months ago

I just bought a Dell U4025. It is wonderful. When coding, it is GREAT to have height of your viewport, often even more important than width. The U4025 is 2160 pixels tall - a huge step up from the 1440 I used in my previous widescreen. I don't think it is the best choice for gaming. What is your game:non-game ratio? Mine is realistically 1:99 so I went with the monitor that was good for the 99% and decent for the 1%. Now that I think about it, I will load up a game and give it a shot. Art

r/macminiUltrawide monitor for Mac mini
9 months ago

I use a Dell U4025. I love the screen, size and format as well as the built in KVM. I connect using TB with my Mac and DP with my PC. Since I bought the MM4Pro, I seldom use the PC. Art

Reddit IconawfulJohn 0.5
r/ultrawidemasterraceBest size ultra-wide monitor for a 48” x 30” desk (Work and gaming)?
11 months ago

Cosigning the U4025QW. I have it (on the Dell arm) on a 46"W desk and it's not only the widest I can go given these dimensions, in terms of LCD, it's probably one of the best for and mostly work use case. Only issue that high FPS games like Valorant might not look great on it with the response rate. I noticed it on Rivals. It doesn't look bad, just doesn't look great.

Reddit IconBananeeen 0.5
r/ultrawidemasterraceUltra wide for Work only (video calls/heavy excel/heavy screen share) that can also connect to my personal MacBook?
about 2 months ago

Just bought it, and thinking whether to keep it. Cannot really have 3 windows side by side, only 2, each of which is more narrow compared to my previous 2x27 4k. Contemplating 57" one despite it seeming too bulky

Reddit IconBelzebutt 0.5
r/ultrawidemasterraceUltra-wide 120Hz+ monitor for M1 Pro?
8 months ago

As a Mac user I'm sure you appreciate how shit MacOS looks at low DPI vs "retina" high DPI... In my view, for a Mac ultrawide, only the Dell U4025QW would cut it for that job (UW + 120 Hz + retina + IPS).

r/buildapc1 monitor or 2 or 3? or an Ultrawide?
9 months ago

Sounds like you want to buy a bunch of expensive stuff hoping to do something with it. That’s backwards, figure out what you like to do first, then buy the stuff to help you do it. To answer your question, from my experience, 3 monitors is too many for one PC, two is ok if you need lots of stuff at a time on one PC, an ultrawide is the best. Having said that, I work on Blender and play games, and for fps games I use an ultrawide 1440p, but for Blender I much prefer my 27” 4K monitor, it’s much sharper and just the right size. The only upgrade I would consider for Blender is the Dell 40” 5K ultrawide, but it’s extremely expensive.

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