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The stand is sturdy and versatile with up to 130mm height adjustment, +/- 20° swivel, +/- 90° pivot, -5°/21° tilt and 100x100mm VESA mount compatibility. READ NEXT: The best monitors you can buy today Alienware 25 AW2521HF review: What you get for your money As it’s the case with most Alienware gaming monitors, the design has a sci-fi vibe with a premium build quality and the AlienFX RGB lighting technology with plenty of customization.
This is also why TN monitors were almost exclusively used by competitive gamers and tournament organizers alike, as these panels are known to display the least amount of input lag, and have some of the fastest response times when compared to their early IPS or VA counterparts. However, as monitor technology has advanced, these shortcomings have been expiated to a considerable degree with the release of fast IPS, SS IPS, and SVA panels.In terms of features, we have VRR, in the form of native AMD FreeSync support and Nvidia G-Sync certified compatibility, an on-screen timer, and fps counter, and display alignment (which helps when setting up a multi-monitor setup) for both options.
At 60Hz, above, the UFO appears soft without sharp focus or clear internal detailing. This reflects a moderate amount of perceived blur due to eye movement and is something shared with the reference screen. There is various degrees of trailing behind the UFOs due to pixel response time weaknesses. In this case, overshoot (inverse ghosting) including some colourful bright ‘halo’ trailing due to aggressive pixel overdrive. The ‘Fast’ setting only showed a relatively small amount of this, whilst the ‘Super Fast’ and ‘Extreme’ settings ramped this up. ‘Extreme’ in particular showed very strong and eye-catching overshoot. ‘VRR off’ did not significantly affect the pixel response behaviour at this refresh rate. The ‘Fast’ setting was quite close to the reference here, with slightly stronger but still by no means extreme overshoot. We therefore consider ‘Fast’ the optimal setting at 60Hz. The image below shows how things look with refresh rate bumped up to 144Hz. The modest color space coverage of the Alienware 25 comes through in our 4K Costa Rica test video. The greens of plants and frogs look natural and reasonably well-saturated, but they could have appeared a bit more vivid. Details are sharp, and action is smooth, but colors aren’t quite as rich or as vibrant as they could have been with proper HDR processing, or simply a wider color gamut (like on the also-HDR-less Alienware 34). As shown in the image above, the monitor uses the usual RGB (Red, Green and Blue) stripe subpixel layout. This is the default expected by modern operating systems such as Microsoft Windows and Apple’s MacOS. As a Windows user you don’t need to run through the ClearType wizard, although you may still wish to adjust this according to your preferences. As a Mac user there’s no need to worry about text fringing from non-standard subpixel layouts. The subpixel layout and arrangement is normal and we had no subpixel-related concerns related to sharpness or text clarity on this model. Next, in the Nvidia control panel, under the "Display" option on the left, in "Adjust desktop color settings", I set the color channel to "All Channels", increased the Brightness to 72%, lowered the contrast to 25%, and lowered the Gamma to .96. Digital vibrance and Hue were left alone. I've been reading that the best Gamma options are between 1.8 and 2.2 for computer monitors but I couldn't raise the Gamma in the nvidia control panel that high because the entire monitor would appear insanely washed out and no other combo of settings could get rid of that effect. I also used the windows color management tool and the below linked tool while tweaking the settings.The monitor can get very bright, even for well-lit rooms, and you’ll want to reduce its brightness from the maximum. A sensitive camera and a utility called SMTT 2.0 was used assess the latency of the Dell Alienware AW2521HF. Over 30 repeat readings were taken to help maximise accuracy. Using this method, we calculated 2.63ms (under 2/3rds of a frame at 240Hz) of input lag. At 60Hz we measured a slightly higher but still reasonable 6.47ms. This figure is influenced both by the element of input lag you ‘see’ (pixel responsiveness) and the element you ‘feel’ (signal delay). It indicates a very low signal delay at 240Hz which even sensitive users shouldn’t find bothersome. Note that we have no way to accurately measure input lag with Adaptive-Sync active in a variable refresh rate and frame rate environment. Finally, note again that you can go to ‘Game Enhance Mode’ in the ‘Game’ section of the OSD to activate the ‘Frame Rate’ feature. This displays the current refresh rate of the monitor and will reflect the frame rate if it’s within the main variable refresh rate window (e.g. 80 – 240fps).
Warmer than factory defaults, but far from ‘Warm’ on our unit with a high colour temperature and cool tint to the image.
Đánh giá & Nhận xét Màn hình Dell Alienware AW2521HF 25" IPS 240Hz G-Sync 1ms
I've bought the monitor couple of days ago and so far I am enjoying it. I've tried finding the best OSD/calibration settings online but pretty much everywhere I see information about the older TN version of the monitor. I am hoping that other users that have the IPS AW2521HF will share some opinions about the best settings that work for them. All that being said, if gaming is where your priorities lie, then the AW2521HF is a great choice. It’s fast and responsive, and is compatible with both AMD FreeSync Premium and Nvidia’s G-Sync technologies for tear-free gaming, which is a sensible move if you own a card from one manufacturer and think you might switch allegiance sometime in the future. Decided to post this here since I struggled with how flat the colors and contrast looked. Hopefully anyone else experiencing this issue can use these settings and achieve similar results. Let me know if you try these and if you love or hate them. With a gaming monitor there are two key strands to image quality. Overall picture quality, which takes into account such elements as colour accuracy, contrast ratio, brightness and so on; and responsiveness, which is the chief concern of gamers.
Full HD resolution is quite limiting in some respects, stand reasonably deep which could be an issue if you have a shallow desk (VESA mounting is an option) Moving on, the Dell AW2521HF has a screen resolution of 1920×1080 pixels, which results in a decent pixel density on its 24.5″ viewable screen. You get 90 pixels per inch, which makes for sharp details and a good amount of screen space. The average contrast ratio with only brightness adjusted was 1054:1, a hair above the specified 1000:1 and as expected for the panel. With our ‘Test Settings’ we recorded a perfectly respectable 1063:1. The highest contrast ratio recorded on the table was 1107:1, using ‘Custom Color’ with all colour channels at their neutral position of ‘100’. The lowest contrast ratio recorded was 831:1, following the significant adjustments made for our ‘Relaxing evening viewing’ settings. The maximum luminance recorded in this table was 427 cd/m², whilst the minimum white luminance recorded was 33 cd/m². This yielded a 394 cd/m² luminance adjustment range with a good bright maximum and dim minimum.The monitor includes a range of ‘Preset Modes’; ‘Standard’, ‘FPS’, ‘MOBA/RTS’, ‘RPG’, ‘SPORTS’, ‘Game 1’, ‘Game 2’, ‘Game 3’, ‘ComfortView’, ‘Warm’, ‘Cool’ and ‘Custom Color’. The numbered ‘Game’ presets and ‘Custom Color’ are most flexible as they allow you to adjust the colour channels and saturation levels. The remaining presets make specific adjustments to those and can’t be manually altered. The numbered ‘Game’ presets can have unique ‘Brightness’ and ‘Contrast’ levels assigned to them as well, whereas this is set universally for the remaining presets. Many of the presets make further adjustments, such as ‘FPS’, ‘MOBA/RTS’, ‘RPG’ and ‘SPORTS’ adding a sharpness filter which can’t be disabled or counteracted effectively in the OSD aside from by selecting a different preset. These were briefly explored in the OSD video, but for the purposes of this table we’ll be looking at manual adjustments and settings we feel have more utility. Alienware claims 1ms grey-to-grey response time, but there are numerous ways to fudge this spec, so it's mostly meaningless – real-world testing is far more revealing of a monitor's capabilities in this realm. Nvidia also offers its Reflex Analyzer built in to the monitor – we've dug deep into this feature before, so I won't rehash that here, but suffice to say it's a cool feature that helps you cut down on input lag, however marginal the improvements may be. Alienware AW2521H – Testing The Final Fantasy XV Windows Edition graphical benchmark looks very nice on the Alienware 25, with natural-looking colors in the green fields and blue skies. The colors could be a bit more vibrant, though, and while the picture is quite bright, fine details in shadows and dark objects occasionally appear a little muddy. The action is nice and smooth, with no noticeable motion artifacts. Also of equal caliber are the peak brightness levels that these Alienware variants are capable of. Though neither of the two support HDR, both exhibit an impressively high SDR peak brightness level that exceed 400 nits. According to Tom’s Hardware the AW2518HF was able to reach a peak brightness level of 418.6 cd/m 2, while according to Rtings.com the AW2521HF exhibited an SDR Real Scene peak brightness level of 406 cd/m 2.
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