Extras: AMD Freesync Premium, Nvidia G-Sync Compatible, height-adjustable stand, 4x USB3 ports (one with power charging), RGB lighting. The Fast setting shows a clear lack of overshoot at 240Hz and relatively low overshoot at much lower refresh rates, though, whilst still providing rapid pixel responses overall. Dell AW2521HF Review: 1080p 240Hz IPS . Response time is the time it takes a display to change from one color to another. Timestamps: Brightness 120cd/m 2 - 25. Its easier to run games at high framerates with it so you can maximize the 240Hz refresh most of the time. Percentage deviations between each quadrant and the brightest point are also given. This was only observed during this test and is something weve seen on various monitors before. Because it is a premium monitor, we expect top-level build quality and a long feature list. Although not nearly as pronounced or obvious as stepping up from 60Hz to 144Hz (or even 120Hz). The contrast gradients were displayed well, with distinct brightness steps in most cases. Where possible, youll be redirected to your nearest store. Press OK, then turn the monitor off then on again so that it re-establishes connection the technology should now be active. We prefer stronger RGB LEDs at the rear, producing a strong glow around the monitor that can help enhance perceived contrast. Preset Mode= Game 1 Where possible, youll be redirected to your nearest store. The numbered Game presets gave a significantly higher white point and somewhat stronger green channel with everything set to 100% than under Custom Color. The contrast gradients were displayed well, with distinct brightness steps in most cases. In this case appropriate richness and saturation was maintained throughout. This diffusion also affects light emitted from the monitor, with a negative impact on the clarity and vibrancy potential of the screen. A sensitive camera and a utility called SMTT 2.0 was used assess the latency of the Dell Alienware AW2521HF. It is, however, extremely accurate within that sRGB space. It was masked by a bit of graininess from the screen surface as well. The monitor was tested at 60Hz (directly below), 144Hz and 240Hz using all available Response Time settings; Fast, Super Fast and Extreme. The image below shows a printed reference sheet of 24 sRGB shades, included as part of the Datacolor SpyderCHECKR 24 package. The monitor performed well here, without clear shifts in saturation or colour tone. Negatives One additional "pro" for the Dell S2522HG is if paired with a 60hz second monitor and set to 240hz it still enables regular idle (lowest power state on memory clocks) for the GPU. From these values, static contrast ratios were calculated. At 60Hz we measured a slightly higher but still reasonable 6.47ms. Setting its overdrive to its Fast setting is a perfect choice so you can enjoy every frame clearly. Given the pleasing responsiveness and colour performance, nice overall build and (subjectively speaking) styling we feel this is an excellent 240Hz Full HD model overall. As frame rate dropped further, well below 200fps, the connected feel and perceived blur was noticeably impacted. The first couple of blocks blended into the background well, which is usual for a monitor tracking the 2.2 gamma curve correctly. Depending on angle, the glow may take on a subtle cool-silver appearance or slightly warm green hue. Both our responsiveness article and the G-SYNC article linked to explore the importance of these two elements being synchronised. Both our responsiveness article and the G-SYNC article linked to explore the importance of these two elements being synchronised. Our RX 580 is far from a powerhouse of a graphics card, so maintaining 240fps was very tricky. Youll also notice G-SYNC Compatible listed under Monitor Technology in this section, as shown below. Some shades appear a touch oversaturated due primarily to the slight extension in the gamut, the most noticeable being dark lime green (18) which appeared a touch more neon. The colour reproduction was a relative strength of this monitor and a good step up from competing models with other panel types. The Dell Alienware AW2521HF (now designated AW2521HFA in UK and EU) aims to find a nice balance between speed and image quality, combining a 240Hz refresh rate with the superior colour quality of an IPS-type panel. Depending on angle, the glow may take on a subtle cool-silver appearance or slightly warm green hue. Stopped readying when I saw it was only HD. In this case, overshoot (inverse ghosting) including some colourful bright halo trailing due to aggressive pixel overdrive. The average deviation between each quadrant and the brightest point was 7.75%, which is decent. The Dell Alienware supports a variable refresh rate range of 48 240Hz. Even the best VA performers show quite pronounced shifts in saturation for such pastel shades when theyre shown towards peripheral sections of the screen rather than centrally. Alternatively, static interlace patterns may be seen with some shades appearing as faint horizontal or vertical bands of a slightly lighter and slightly darker version of the intended shade. Full profiling and appropriate colour management on the application would provide a tighter match, our intention here is to show what can be expected in a non colour-managed environment. Slight changes could be observed at the very edges for some shades, such as the purple of Leelas hair gaining a bit of an extra red vs. blue hue to the purple more pronounced if sitting close to the screen. There is various degrees of trailing behind the UFOs due to pixel response time weaknesses. The AW2521H's overdrive feature (labeled Response Time in the menu) can improve motion even further, though it does introduce slight haloing artifacts. The segments are now quite distinct. Compared to at 60Hz, or indeed a 60Hz monitor, youre getting up to 4 times as much visual information pumped out every second. IPS glow also came with the territory. Somewhat yellow compared to on models with a much more generous colour gamut, but less so than models that very strictly follow the sRGB gamut. Nonetheless it is still there as the overdrive is tuned for strong 240Hz performance rather than strong <100Hz performance. They often catch the eye due to their dynamic nature, on models where they manifest themselves in this way. On Battlefield V the monitor provided a very fluid experience, where the frame rate kept pace with the 240Hz refresh rate. The slight caveat to LFC is that theres a very brief stutter when it activates or deactivates. FreeSync also boasts reduced latency compared to running with VSync enabled, in the variable frame rate environment in which it operates. The camera, processing done and your own screen all affect the output so it doesnt accurately represent what youd see when viewing the monitor in person. Conclusion It requires a USB connection and that you plug your mouse into the special USB port on the panels bottom edge. From the side the screen itself is quite slim ~16mm (0.63 inches) at thinnest point, lumping out centrally where the stand attaches. The image below shows how things look with refresh rate bumped up to 144Hz. Our RX 580 is far from a powerhouse of a graphics card, so maintaining 240fps was very tricky. 7 times the pixel density of Full HD, WQHD resolution boasts incredibly detailed, pin-sharp images. TN models show obvious saturation shifts vertically. You can also create custom scenarios linked to specific games in the Alienware Command Center app. It cant compensate for other interruptions to smooth game play, for example network latency or insufficient system memory. Behind the right edge are four more keys and an on-screen display (OSD) joystick. Brighter elements stood out well against darker surroundings, complete with a bit of graininess from the screen surface but nothing extreme. At 25 inches, its 1080p resolution provides enough pixel density to render small fonts and fine details well. There was borderline significant deviation above the central region (DeltaE 3.0), with no significant deviation recorded elsewhere. Or obvious flashes of pink that shift along with slight head movement. The table below shows these values as well as the percentage deviation between each quadrant and the brightest point measured. Where possible, youll be redirected to your nearest store. Considering video content more broadly, including streamed and heavily compressed content, there was suitable masking of compression artifacts. The slight caveat to LFC is that theres a very brief stutter when it activates or deactivates. With the AW2521HF, you need to connect the monitor up via DisplayPort and enable FreeSync in the Game section of the OSD. Unless youre frequently passing this boundary its not something youre likely to notice or care about, though. Its again important to note that individual unit vary when it comes to uniformity and that deviation beyond the measured points can be expected. As with AMD FreeSync this technology worked very well, although there was a momentary stutter when it activated or deactivated. This is the default expected by modern operating systems such as Microsoft Windows and Apples MacOS. 80 240fps). Brighter elements stood out well against darker surroundings, complete with a bit of graininess from the screen surface but nothing extreme. No saturation losses towards the bottom or edges as youd see from other panel types. The remaining presets make specific adjustments to those and cant be manually altered. To maximise colour accuracy within the sRGB colour space, for colour-managed workflows, full calibration and profiling with a colorimeter or similar device is recommended. We refer to these as interlace pattern artifacts but some users refer to them as inversion artifacts and others as scan lines. FreeSync requires a compatible AMD GPU such as the Radeon RX 580 used in our test system. The monitor didnt put form over function, either, and was solidly built with good ergonomic flexibility and VESA mounting options. Last Modified: 07 FEB 2023. The base takes up a lot of space, but it provides superb flexibility to the monitor. 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Laras skin also appeared much as it should, without the overly tanned appearance that a wider gamut would provide. In the . Youll also notice G-SYNC Compatible listed under Monitor Technology in this section, as shown below. There was no noticeable dithering. Nonetheless it is still there as the overdrive is tuned for strong 240Hz performance rather than strong <100Hz performance. What can we help you to find. This indicates that the monitor has been specifically tested by Nvidia and passes specific quality checks. This gives the monitor the potential to output most shades within the sRGB colour space, with just a touch of extra vibrancy.