Dell UltraSharp 40 5K IPS Black 120Hz Monitor Evaluation: It’s A Stunner

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Dell’s 40-Inch IPS Black Curved Monitor Is A Workstation Professional’s Excessive Decision Dream





Dell UltraSharp 40 Curved Thunderbolt Hub Monitor U4025QW: MSRP $1919, Presently $1489

The Dell UltraSharp 40 U4025QW is a giant, lovely, curved Thunderbolt-enabled monitor that includes a 5K2K decision and IPS Black panel know-how. It is ultimate for creators and productiveness staff who want glorious shade constancy and a ton of excessive decision display actual property.

hot flat


  • IPS Black With Nice Distinction And Saturation
  • Glorious Colour Accuracy
  • 120Hz Refresh Fee
  • Large Viewing Angles
  • Drop-Down Built-in Thunderbolt Hub
  • Built-in KVM And Tons Of IO Choices
  • Nice Ergonomics
  • Low Blue Gentle Eye Care



not flat


  • Sluggish Response Time For A 120Hz Panel

hothardware editors choice small 125px



We have taken a have a look at IPS Black panel know-how right here at HotHardware a number of occasions previously. This new LG-developed show know-how is what permits the Dell UltraSharp 40 Curved Thunderbolt U4025QW monitor now we have teed up for evaluate as we speak. We took a have a look at the 34-inch UltraSharp 34, a 34-inch curved 1440p model, not way back and had been impressed, although a few of us had been left wanting extra. 

Extra is often at all times higher, proper? So say howdy to the Dell UltraSharp 40 Curved Thunderbolt monitor, mannequin U4025QW, sporting 40-inches of curved 5Kx2K excessive decision love with a 120Hz refresh charge. Is that this factor too large to soak up on a workstation desk if you’re a foot and a half away from it? Do you really want all that display actual property? Simply how good is IPS Black actually, and is that this show able to excessive accuracy shade replica for true workstation use? Are you able to recreation on this large magnificence?

We’ll attempt to reply all these questions and extra, as we pixel peep each sq. millimeter of this thrilling, massive, cutting-edge desktop monitor from Dell. Let’s have a look…

Dell UltraSharp 40 Curved Thunderbolt Hub Monitor U4025QW Specs And Options


What Precisely Is IPS Black Show Know-how?

IPS Black is a non-traditional panel know-how and beneath its TFT LCD display and anti-glare coating lurks a show know-how that turns conventional IPS on its head. Merck and LG Show teamed-up to carry one thing actually distinctive to the desk with the IPS Black panel that Dell employs onboard the UltraSharp 40. What units this aside isn’t only a tweak to the liquid crystal materials; it is a basic shift in how the panel operates. Conventional IPS shows labored on a “usually off” mode—which means when no voltage was utilized, you’d see a black pixel. However with IPS Black, it is the alternative. No drive voltage? You’re taking a look at a white pixel as an alternative. Kinda loopy proper?

u4025qw xfp 01 bk

The result’s that IPS Black takes legacy IPS show efficiency to the following stage, providing considerably deeper black ranges and improved distinction ratios over conventional IPS panels. The result’s a way more correct depiction of darkish areas in a picture, all whereas retaining broad viewing angles and providing even higher shade precision versus commonplace IPS shows. It is a strong step ahead in delivering extra vivid, correct visuals, and it beats absolutely anything wanting an OLED monitor, with out struggling the challenges that know-how presents (when it comes to burn-in danger, and many others.). The Dell UltraSharp 40 particularly can render 99% of the DCI-P3 and Show P3 shade house on common, so if you happen to’re in want of true shade constancy, this monitor can ship it. Extra on this in our testing under.

There are some caveats with IPS Black, nonetheless. The one actual disadvantage presently is that, because of the new panel materials and reversed voltage modes, response occasions with IPS Black shows aren’t fairly pretty much as good as commonplace IPS shows but, particularly IPS gaming screens. That mentioned, at its Quick mode setting, the Dell UltraSharp 40 can hit a 5ms response time at 120Hz, which is nice sufficient for informal to moderately-fast gaming necessities. Maybe quick twitch eSports players should not apply right here, however extra on this later. 

Dell UltraSharp 40 Curved Thunderbolt Hub Monitor (U4025QW) Design And Options 

Sprinkled among the many deep tech specs above, just like the panel’s crispy-tight 140ppi pixel density and sharp 2000:1 distinction ratio, you will discover this panel is a veritable Swiss military knife of a monitor, with copious options and a sublime, not too pronounced 2500R curvature.

dell ultrasharp 40 curved base view
dell ultrasharp 40 curved full back view

The UltraSharp 40’s stand has a cable administration slot, together with assist for tilt, swivel and top adjustment. There is a silver-gray, matte end with a excessive density plastic development over an inside metallic body. As you possibly can see above, the again righthand aspect of the show is the place the facility button and on-screen management button reside. It is a fairly commonplace Dell setup that appears clear and works effectively, with extraordinarily good flexibility in positioning for optimum ergonomics and viewing. 

dell ultrasharp 40 curved back ports view

u4025qw cfp port gy
Dell UltraSharp 40 U4025QW IO Port Choices

In the case of connectivity choices, this new skilled grade Dell monitor actually shines. There is a Thunderbolt upstream port that helps 140W Prolonged Energy Vary charging for PCs and different gadgets. That port will drop to 90 Watts, nonetheless, if the gadget solely helps SPR or Customary Energy Vary. There’s additionally one other 15 Watt Thunderbolt 4 downstream port for daisy-chaining a number of panels if you happen to’re an actual property hog, and a USB Sort-C upstream port, supporting SuperSpeed USB 10 Gbps, USB 3.2 Gen 2. You additionally get the compulsory DisplayPort 1.4 port and an HDMI 2.1 port as effectively for enter choices. Then the listing goes on with three USB Sort-A downstream ports (SuperSpeed USB 10 Gbps, USB 3.2 Gen 2), a single USB Sort-A downstream port (SuperSpeed 10 Gbps, USB 3.2 Gen 2), and a 2.5GbE RJ45 Ethernet port with PXE boot, Mac Deal with pass-thru and Wake on LAN options.

Primarily, you need to use this monitor as a real docking station as effectively.

quick access ports dell ultrasharp 40

And if that wasn’t sufficient, on the above pop-out IO block, you get one other two USB Sort-C downstream ports (SuperSpeed USB 10 Gbps, USB 3.2 Gen2) with energy charging (15W), and a USB Sort-A downstream port (SuperSpeed USB 10 Gbps, USB 3.2 Gen 2) with BC1.2 energy charging. Dell additionally packs in a pair of audio system with the UltraSharp 40, in a 2×9 Watt config, that produces first rate although uninspiring sound. It will suffice for workplace work and convention calls, however excessive constancy audio media consumption ought to seemingly be dealt with externally. In any occasion, all in, the Dell UltraSharp 40 is effectively outfitted with IO and connectivity choices galore.
dell ultrasharp 40 curved on screen controls
On-Display Show Menu

The Dell UltraSharp 40’s show settings are simple to entry, due to a conveniently positioned joystick on the rear proper of the panel. A fast press pops up a menu full of a ton of choices. One of many standout options right here is the built-in Community KVM swap, which helps you to run two techniques off a single monitor with a break up show. And if that wasn’t sufficient, you’ve acquired Image-in-Image and Image-by-Image modes on faucet, all seamlessly built-in with the Auto-KVM and Community KVM performance. This massive monitor additionally has Inside Multi-Stream Transport, so you possibly can break up the show into two digital 2560×2160 screens, with out the necessity for any exterior software program or a DisplayPort splitter. That is positively a strong set of options for productiveness staff and content material creation professionals that have to multitask in a giant manner.

There are additionally a bunch of controls for preset shade house settings, brightness, distinction, and many others. Nevertheless, although the panel arrived pre-calibrated out of the field from Dell, we would extremely advocate organising this large excessive res show with a correct colorimeter calibration at the start. 

Talking of which, let’s dig into what we discovered with our meters and in experiential testing…

Dell UltraSharp 40 U4025QW Colour Accuracy, Uniformity And Gamut Protection Outcomes

u4025qw curved ips black color gamut coverage

u4025qw curve ips black color gamut test
UltraSharp 40 U4025QW DCI-P3 Gamut Protection

Dell claims Delta E is lower than 2 on common, and our testing proved a wonderful results of 0.11 on common with a most shift of two.77. Gamut protection can be excellent, with close to 99.9% sRBG protection and 94.5% precise measured protection of the DCI P3 shade gamut. The gamut plot, aka the chromaticity diagram, above additionally visualized this shade accuracy results of the Dell UltraSharp 40, which is great. 

dell ultrasharp 40 curved IPS black monitor color uniformity test
UltraSharp 40 U4025QW Colour Uniformity Check Outcomes

Our shade uniformity testing additionally was met with nice outcomes for a really massive panel like this. There was a little bit of drift within the backside proper of this show, although regular tolerances nonetheless confirmed as passing. All-in, once more, for a big 40-inch panel just like the UltraSharp 40, this can be a strong uniformity consequence.  
dell 40 inch ips bleck monitor viewing angle test
Dell’s UltraSharp 40 U4025QW Performs Admirably With Large Viewing Angles

Viewing angle efficiency with this monitor was additionally glorious. Dell claims a 178° vertical and 178° horizontal viewing angle spec, and we had been capable of show that out. Word above how the tiger maintained an abundance of shade saturation and distinction. Even black ranges remained deep from this angle. That is one other key benefit of IPS Black panel know-how, and the huge display actual property and broad viewing angles of the Dell UltraSharp 40 U4025QW spotlight this in spades. 

Dell UltraSharp 40 U4025QW Content material Creation And Productiveness Efficiency

dell ultrasharp 40 curved workflow example
Excessive Decision Display Actual Property For Days

Now that we have gotten previous the scientific testing of this large, bodacious show, we’ll cowl our experiential impressions in a few totally different use instances. Above you possibly can see what you are able to do with a 40-inch, 5K 120Hz curved monitor, which is to say absolutely anything. Right here we have fired up Energy Director for video modifying, Adobe Photoshop for picture modifying, Discord for real-time chat and a Chrome internet browser session with HotHardware.com. It is a good illustration of a content material creation workflow on the Dell UltraSharp 40 that’s potential with a 40-inch desktop at a super-high 5120×2160 decision. In the event you work in the same movement to this, you will rapidly be spoiled with this sort of precision, display actual property and top-notch shade accuracy. 

Dell UltraSharp 40 U4025QW Gaming And Media Consumption Efficiency

gaming 1
Driving 5K Native Res Gaming Will Take Some Muscle


Gaming on the Dell UltraSharp 40 U4025QW monitor has it is professionals and cons, nonetheless. There’s little query {that a} large 5K show like this can be a heck of lots of enjoyable to recreation on, however your graphics card higher be as much as the duty if you are going to recreation at native res. Right here we’re driving Indian Jones and The Nice Circle at 5120×2160 with the Extremely high quality preset and ray tracing enabled. Our GeForce RTX 4090 was breaking a tough sweat, although we nonetheless managed a easy ~60 FPS, which was greater than satisfying and an actual deal with at this panel dimension and backbone.

If it is advisable scale issues again to 4K or 1440p, nonetheless, so as to hit a playable body charge on a lesser graphics card, the Dell UltraSharp 40 scales down pretty effectively. It is nonetheless a tall order, and do not anticipate pristine readability nevertheless it will get the job achieved. Scaling again to 4K is crisp, although 1440p positively will get a bit of muddy as does 1080p. For some players, the larger situation with the UltraSharp 40 is that, although it is a 120Hz panel, it has a comparatively pokey greatest response time of 5ms on its Quick setting. In our expertise we did not see a ton of ghosting throughout recreation play, although it was observable at occasions. It wasn’t a show-stopper for us by any means however, for many who key on quick response occasions, or aggressive players who dwell or die between the milliseconds, you will most likely need to look elsewhere. This an expert, very correct, BIG workstation show first, although it does have some recreation at 120Hz. 

We’ll additionally be aware that players will recognize the sharp distinction and deep blacks of this show as effectively. All the pieces simply pops higher on this panel, very like you expertise with OLED. Compared to one other an LG UltraGear 38 Inch Extremely Large 1440p Nano IPS panel we had available, there was no comparability when it comes to shade replica, although the UltraGear is a 1ms panel particularly focused for gaming.

Lastly, video and film watching on the UltraSharp 40 was a pleasure. This panel is as much as the duty with HDR assist, and fast-paced motion was easy and ghost free from our expertise. As well as, Dell claims the UltraSharp 40’s IPS Black panel can be licensed for TUV Rheinland 5-Star Eye Consolation ranges, and “reduces dangerous blue mild emissions to ≤35%, in comparison with ≤50% from its earlier technology, for all-day eye consolation with out sacrificing shade accuracy.” So briefly, it would assist to not disturb your circadian rhythms as effectively. If you would like to video stream on the UltraSharp 40 as backup TV to wind down on the finish of a day, this 40-inch curvaceous magnificence with its 21:9 side ratio has you coated there too. 

Dell UltraSharp 40 U4025QW IPS Black Monitor Closing Evaluation Evaluation


The final predominant testing and evaluation part above actually tells you all it is advisable know in regards to the Dell UltraSharp 40 U4025QW (please Dell, let’s simplify these mannequin numbers!).  It is a content material creation skilled’s or productiveness employee’s highly effective software, and a window to large display actual property and multitasking, first. If you do not have the necessity for this sort of excessive decision, excessive constancy, massive show space, there are many different choices on the market. Nevertheless, if shade constancy, and a large excessive decision desktop, or a number of desktops are what you crave or want, you possibly can’t go fallacious with this IPS Black monitor from Dell.  

dell U4025QW Lifestyle
Discover Dell’s UltraSharp 40 U4025QW Curved IPS Black Monitor At Amazon

All through our testing, what was most distinguished for us was how wealthy and vibrant shade replica is with the UltraSharp 40, with deep blacks and unbelievable distinction. When you get this monitor dialed in with correct calibration, the advantages of IPS Black know-how are greater than distinguished. This show know-how is a superb various to OLED panels, and Dell has configured a 40-inch curved 5K HDR Cadillac of a monitor with the UltraSharp 40 U4025QW. At $1489 presently on Amazon, it is a bit of attain price-wise for some, however we expect it is a nonetheless a powerful worth for what Dell delivers. Although it has its caveats for players, this is among the greatest massive format screens we have ever set eyes on, and we won’t cease gawking at it, a lot in order that we’re giving it an Editor’s Alternative award.  

HotHardware Editor's Choice Award


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