When comparing LG 25UM57 vs Dell Alienware AW3418DW, the Slant community recommends LG 25UM57 for most people. In the question“What are the best monitors?” LG 25UM57 is ranked 6th while Dell Alienware AW3418DW is ranked 65th. The most important reason people chose LG 25UM57 is:
The fact that a monitor of this price range has a 5M:1 contrast ratio is simply astonishing. This means users get cinema-like picture quality right at their desk.
Specs
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Pros
Pro Cinema-like picture quality for an affordable price
The fact that a monitor of this price range has a 5M:1 contrast ratio is simply astonishing. This means users get cinema-like picture quality right at their desk.
Pro Good sound quality with no need for external speakers
This monitor's speakers are as good as those found on small TVs. They're located in the back and come with an audio jack for headphone connectivity.
Pro Immersive
The 2560x1080 resolution creates an immersive setup. This applies even for work tasks: multiple documents can be displayed side-by-side with no legibility sacrifice. It's equivalent to having two monitors with 1280x1080 screens.
Pro Advantageous for all uses
This monitor's ultrawide screen has advantages for all uses. When it comes to movie watching or gaming, the screen size contributes to a truly engaging experience. As far as general productivity goes, the ultrawide screen makes it easy to have different applications or documents open side by side.
Pro Great for watching movies
The 21:9 aspect ratio comes in handy when watching movies. This is the default aspect ratio at which almost all of the films are shot. Hence, you can watch your movies without having two black bars at the top and bottom of the screen.
Pro Supports G-Sync
The AW3418DW doesn't suffer from screen tearing thanks to its G-Sync support that lets it synchronize the monitor's refresh rate to match the framerate of your Nvidia graphics card.
Pro Immersive gaming experience
This monitor has everything needed to offer highly immersive gaming experience - it has beautiful, 34-inch curved ultra-wide screen, exceptional responsiveness as well as excellent overall picture quality and motion handling. This is a sporadic case of a monitor that offers outstanding picture quality without sacrificing the responsiveness.
Cons
Con Limited connectivity
This monitor has two HMDI ports, which is pretty good. However, it misses other display inputs such as DVI or Display Port, making incompatible with older computers.
Con Lack of support for ultra-widescreen in (old) games
A handful of games do not support 21:9 aspect ratio by default. Some examples are Overwatch, Fallout 3, and Starcraft 2. If this is important for you, it is recommended you test this issue before getting this monitor. But there are solutions: you can either install fixes (only available for some games) or play in windowed mode, using a different aspect ratio.
Con Slow response time
A response time of 5 ms on a gaming monitor is pretty awful. Considering its refresh rate, it is understandable but not acceptable. Note that this response time is from gray-to-gray.
Con 720p and 1080p videos are sandwhiched
This monitor's aspect ratio means that many online videos, such as those from Netflix or YouTube, will have black spaces on the sides, which can be annoying.
Con Requires beefy hardware
You'll need to have a high-end gaming rig to unleash this monitor's full potential in the current AAA titles since it takes a lot of power to drive its 3440x1440 pixels at the framerate of 120 FPS.