This led to low deltaEs from the factory, and virtually no appreciable tint to the monitor. My old monitor was the Asus PG279QZ. However, after the completion of a transaction, delays of 4 to 15 seconds can be tolerated. We are going to look in this post at how we might categorise response times based on the interaction model with the end-user. OctoPerf integrates with your servers / CI / APM. The majority of transitions are not affected by any sort of noticeable overshoot, and instead we are left with a 4.47ms grey to grey average response time, which is excellent. As for whether you should buy the AW2721D, I'm sure a lot of people are wondering whether to get this, or go for something like the Samsung Odyssey G7, so here's my simple breakdown as I've tested both. Not having an sRGB emulation mode in such a high-end product is a noteworthy omission. The Alienware AW2721D is a great high-end gaming monitor and one that shows the promise of IPS technology for 1440p 240Hz applications. Alienware AW2721D - Fast - 240Hz, 200Hz, 165Hz, 144Hz, 120Hz, 100Hz, 85Hz, 60Hz. For certain types of applications, certain types of end users may be content to sit at a terminal for more than 15 seconds waiting for the answer to a single simple inquiry. 2 to 4 seconds. With LG IPS panels there is always some discussion on contrast ratio, especially since the early days of monitors like the 27GL850. The following summarises research conducted in the late 1980s that attempted to map end-user productivity to response times. But these displays do trade blows and the Alienware monitor isn't that far behind. The AW2721D, despite being G-Sync Ultimate, is only a semi-HDR panel. High-end ultrawides may also come into consideration although at that point we're basically talking about a different monitor category. Despite such high peak brightness, the AW2721D also delivers great minimum brightness at a touch below 50 nits, so there is a large range of values to tweak brightness to your liking. The level of height adjustment is also generous and I think it's helped by having such a huge stand assembly - even though the stand legs don't take up a ton of desk space. And you'll see what I'm talking about when we look at response times recorded at 120Hz. This is the first monitor we're reviewing using our updated test methodology for 2021. As grayscale performance is great from the factory and there's no sRGB mode, there is little that can be done in the OSD to improve performance, aside from a few minor tweaks if things are slightly off. Anything below 5ms is excellent and delivers a highly responsive experience. You're actually better off with an LG 27GL850 for gaming in that lower refresh range, although if you wanted faster response times and were okay with much higher overshoot then you could increase the overdrive mode one notch. It really depends on your application and the audience that will be using it. In terms of performance across the refresh range, buyers of the AW2721D should stick with using the Fast mode, which provides a single overdrive mode experience, exactly what I'd expect from a premium display. Similar results in ColorChecker, the positive being that skin tones aren't affected significantly so it's unlikely you'll see a "sunburned" look, however oversaturation is still present. Alienware AW2521HFL. If you enjoy our content, please consider subscribing. Without this critical measure we really cannot say for certain that an application or service performs. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. But he did not to pixel response testing, so I would like to see a review from tftcentral, rtings, or hardware unboxed. RDNA 3 incoming: Watch AMD unveil Radeon RX 7000 graphics cards here at 1pm PT / 4pm ET, Elon Musk set to lay off half of all Twitter employees, end work-anywhere policy, Call of Duty: Modern Warfare II's opening weekend was the best in franchise history, October survey puts Windows 11 adoption at just 15 percent worldwide, Meta's AI-assisted audio codec claims 10x compression rate compared to MP3s, Samsung Odyssey G9 49" Super-Ultrawide on, Ad-free TechSpot experience while supporting our work. JMeter are trademarks of the Apache Software Foundation (ASF). However when measuring within a single frame, the AW2721D in even the best case scenario fails to reach a baseline target contrast ratio of 50,000:1 for an okay HDR experience. But these displays do trade blows and . The good news though, is it is actually available, which we can't say about every new bit of hardware we test these days. I'm not a fan of the large 27 printed onto the rear but outside of that it's a pretty clean body with some nice curves. Lets look at the findings and we will discuss further in the next section. These delays are generally too long for a conversation, requiring the end user to retain information in short-term memory (the end users memory, not the computers!). Another important point on the spec sheet is G-Sync Ultimate support, although it's the new watered down G-Sync Ultimate, not the high standard the program once commanded. After all, hitting 1440p at 240 FPS in today's games is quite a challenge. Join thousands of tech enthusiasts and participate. Using our newer test methodology which is gamma corrected and measures more of the response time curve, we do spot some slower transitions, particularly fall times that have a longer trail. If such delays could occur, the system should be designed so that the end user can turn to other activities and request the response at some later time. All of these elements combined with response time numbers that aren't too far off the Odyssey, means it's a great balance of features. The more detailed the information to be remembered, the greater the need for responses of less than 2 seconds. For more information, please see our Reddit and its partners use cookies and similar technologies to provide you with a better experience. Again the main benefit is simply a higher refresh rate overall. It is relatively easy to predict volumes, load and users that will use your application as you will no doubt have some data based on your current systems. Wrapping up our performance testing is a look at HDR. Certain types of thought-intensive work (such as writing a book), especially with applications rich in graphics, require very short response times to maintain end users' interest and attention for long periods of time. TECHSPOT : Tech Enthusiasts, Power Users, Gamers, TechSpot is a registered trademark. Resolution: 1920 x 1080. Many computer games require extremely fast interaction. Seems like it could also be the NanoIPS panel. Was wondering what fellow owners were using for their brightness/contrast settings. You can also look to include their relative importance and complexity into your thinking. Apache JMeter and The AW2721D with its IPS panel is much more versatile and I'd recommend it for those that also want to use their monitor for other things. The Alienware AW2721D is a new high-end 27-inch 1440p monitor, giving us our first look at the combination of a 240Hz refresh rate and IPS technology at this resolution. I am down to 2% now (75% contrast) trying to see if that helps reduce the eye strain I am getting. If the Acer has a good variable overdrive implementation and bests the AW2721D in response time charts then I will definitely switch. However based on the displays I've tested so far, this is somewhat common for IPS panels and this is far from the worst example. Alienware are touting "true 1ms GTG response time" - we'll see about that - but we do know the monitor uses a latest-generation LG IPS panel so we're expecting performance that's similar to other LG IPS products. All rights reserved. You can see variable overdrive at play here, especially below 100Hz, where the monitor appears to switch to a slower mode to keep overshoot in check. My unit had near perfect adherence to the sRGB gamma curve, and a negligible deviation from the accurate CCT curve. Again, a delay in this range may be acceptable after a minor closure. If you want a single monitor in your setup to tackle both high-end gaming and productivity, then something like the AW2721D is going to set you up perfectly now and for many years into the future. When defining these you should do so with your end users or business teams. Using the same principles you can categorise your batch response times based on how long your batch window is verses how may batches need to be run. When this analysis was taking place the concept of service-based architecture and cloud computing was not something that would have been considered. However, a big negative is the AW2721D does not have an sRGB mode, so there is no way to emulate or clamp this gamut down to sRGB for viewing regular content. As a result, our cumulative deviation numbers increase, suggesting we are further from an ideal response than in the previous mode. Samsung's latest VA technology with no dark level smearing is extremely impressive, and holds up a bit better for these premium high refresh rate displays than IPS. Apache, In terms of the best performance at 240Hz, the AW2721D isn't quite as good as the Odyssey, mostly due to higher overshoot at a similar response time average. Super Fast does decrease response times to 3.57ms on average, but this comes with a significant increase to overshoot. In a best case scenario, the AW2721D can change from dark to bright in separate frames to good effect, delivering a dynamic contrast ratio as high as 63,000:1. A response to pressing a key (e.g., seeing the character displayed on the screen) or to clicking a screen object with a mouse must be almost instantaneous: less than 0.1 second after the action. And while the majority of the outer materials are plastic, I think it looks quite premium with its mixture of black and white soft finishes. The overdrive settings above Fast are not worth using. At times, overshoot can be a little higher than I'd like, in particular at 200Hz, but for the most part the level of overshoot is manageable and not that noticeable in practice. G-Sync Ultimate used to be for the best HDR displays on the market, but that's not the case in 2021, as the AW2721D has somehow qualified despite having just DisplayHDR 600 certification and only edge-lit local dimming. Has anyone calibrated the monitor yet? Privacy Policy. JMeter. With features like 96% P3 coverage, excellent factory greyscale calibration, and a nice flat panel with excellent viewing angles, the AW2721D is suitable for creative and general office work, too. Viewing angles are outstanding, and LG panels remain some of the best on the market in this area. And use these metrics to build response time requirements as part of your wider non-functional requirements. Of the three pillars of HDR, what this monitor lacks is proper local dimming; we're getting only 32 edge lit zones, which is insufficient for producing bright highlights and deep blacks on screen at the same time, a cornerstone of an HDR presentation. There's very little color shift when viewing at off angles which gives you the flexibility to view this display in different ways. In terms of the best performance at 240Hz, the AW2721D isn't quite as good as the Odyssey, mostly due to higher overshoot at a similar response time average. Nothing unusual from the power consumption side of things, the AW2721D is slightly more efficient than the HP Omen X 27's TN display, even factoring in RGB lighting. They provide a way, if needed, of prioritising your testing focus by prioritising the business transactions with the more aggressive response times. There is no set generic industry standard for performance response times and there is very little been written about the subject. Sustained brightness of around 520 nits with a full white window is decent, and that increases to 750 nits for bright flashes, enough to dazzle in indoor conditions. All things considered this isn't the worst result I've seen from a wide gamut display, and some people actually like this look, but it could be better. Given many of you won't have seen this metric before, I'll provide some context, in that scoring 414 points here is excellent and indicates a fast panel. I was quite impressed with this display's versatility. There are several other little bonuses sprinkled in here as well. This monitor doesn't handle brightness roll off well, so elements that should be bright are not as bright as they should be. Excellent but reasonably priced 240Hz gaming monitor. Input lag is virtually zero, and the build quality was impressive and befitting of its price tag. With this in mind services interaction would fall in the sub-second response time category. We need to be able to answer these questions: At what point does a response time become unacceptable? Is this level of overshoot problematic? The analysis above would seem to indicate that the 15 second category is the one that asynchronous transactions fall into. Input latency is excellent at 240Hz, with practically no processing delay on the monitor's side, leaving the only remaining latency due to refresh lag and response lag. However since that initial release of Nano IPS displays, LG has been able to improve the contrast ratio with newer panels. The display can also sustain over 700 nits for lower window sizes, adding to a decent but not chart topping collection of brightness numbers. Using a category-based system is useful and scientific enough for the business and development teams to agree on. A wait of 2 to 4 seconds can seem surprisingly long when the end user is absorbed and emotionally committed to completing the task at hand. We're kicking things off today with our first monitor review of 2021, we're taking a look at the Alienware AW2721D, a hot item at the moment. The central zone was great but my unit did exhibit some IPS glow in the bottom right corners, although your mileage may vary and I suspect this will improve on my sample over time. With its 1440p 240Hz capabilities, this new Alienware display is competing directly with the Samsung Odyssey G7, another 1440p 240Hz display we've looked at with a curved VA panel instead. And in our worst case single frame contrast test, which measures a bright and dark object side by side, the AW2721D does not deliver an HDR experience. A threshold of 2 seconds was the recommendation for applications that interact with users. For some reason, RGB balance also gets a lot colder at higher brightness levels, while it's decent and quite accurate at lower brightness levels. So let's see how it performs At 240Hz using the lowest overdrive mode, Fast, it's clear that overdrive is indeed enabled. The AW2721D is a large monitor for something that only has a 27-inch panel, and I'm not talking about bezels but the overall monitor body. On average across the refresh range, the G7 does have a clearer edge, ending up with less overshoot and also a 10 percent faster response on average. When the application user has to remember information throughout several responses, the response time must be short. It has a 240Hz refresh rate, a 1ms response time, and supports FreeSync and G-Sync modesand it's . When viewing cumulative deviation, showing how close the monitor gets to the ideal response, the AW2721D sits among a huge glut of modern IPS monitors that all deliver a similar experience, in that 500 to 600 point range when measured across their refresh range. ColorChecker factory calibration is also not the worst, although sRGB only monitors like the BenQ EX2510 do deliver a noticeably better experience. Alienware AW2721D - Super Fast, Extreme - 240Hz. It helps define it based on so real analysis rather than assumption of guess work. We also get 70% refresh compliance, which using our new methodology is sufficient to call this a true 240Hz display, which is a great sign from an IPS panel. Tucked neatly behind the magnetic port cover are a DisplayPort and two HDMI ports, plus some USB ports. It may be acceptable to make purchasers wait 2 to 4 seconds after typing in their address and credit card number, but not at an earlier stage when they may be comparing various product features. The AW2721D does deliver great performance in that 5ms range, but it's not fundamentally different to other offerings, so buyers of this display should be primarily interested in gaming above 165Hz either now or in the future. This rules out conversational interaction. OctoPerf 2014 - 2022. An artist dragging an image to another location must be able to act instantly on his next creative thought. Such delays would inhibit problem-solving activity and frustrate data entry. However in the HDR mode, the AW2721D doesn't do the worst job of keeping to proper saturation performance within the limits of what the display can do. I put my brightness down to 10% and it still felt really bright. A wait of 2 to 4 seconds can seem surprisingly long when the end user is absorbed and emotionally committed to completing the task at hand. We may earn a commission when you buy through links on our site. On the right you'll see our new cumulative deviation results, which measure how close the response behaviour gets to the ideal "instant" response. The reason I make this rather obvious point is that as Fast is the "lowest" mode, you actually can't disable overdrive on this display entirely. Unfortunately when viewing sRGB content there is going to be some level of oversaturation. The Alienware's flat panel is also much better at this size, plus you're getting better viewing angles, better uniformity, a wider color gamut and better factory calibration. For P3 work we see generally strong results, although as coverage is only 96% instead of 100%, you will lose a small amount of accuracy at the top end of the saturation range. We would also need to consider asynchronous transactions where the application is processing after a response has been received. New comments cannot be posted and votes cannot be cast. Again, a delay in this range may be acceptable after a minor closure. This would still seem a sensible and again might be a response time to use as your requirements for all user-based interactions. Meanwhile, due the way variable overdrive operates on this monitor, the AW2721D is only a mid-range performer at 60Hz.

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